OS/2 Shareware BBS: 30 fixes

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Text File | 1994-01-11 | 53KB | 1,338 lines

**************** ** C Compiler ** **************** Put full path of file name into debugging information so that the debugger can find the source file without having to use 'set source'. =========================================================== /bt=netware turns on /fpr switch =========================================================== The floating point constant 0129.5 was not properly parsed (compiler thought that it was an octal constant and complained when it saw the '9' digit). =========================================================== ******************** ** Code Generator ** ******************** recognizes more numeric operations as dangerous for purposes of hoisting (POW, MOD etc). =========================================================== bug in handling of large, overlapped moves was fixed =========================================================== would GP-fault when running low on memory and trying to optimize =========================================================== The following C++ code would use an incorrect offset for the string literal "BAD" when compiled with the -ml -zc switches: class A { public: virtual char * add( void ) { return "BAD"; } }; int main() { A * it = new A; it->add(); return 0; } =========================================================== The compiler no longer GPFaults when fixing up certain types of one iteration loops (loops which will go around exactly one time). =========================================================== Do not generate needless runtime calls to compare code pointers against NULL. =========================================================== A loop which was going to execute exactly one time followed by another loop (without intervening code) would cause incorrect code to be generated. =========================================================== Fixed a bug which caused data to be ejected into the wrong spot in a code segment when compiling with debugging optimization. =========================================================== When unrolling a loop we would not assign locations to temps on occassion which would result in an internal compiler error #30. =========================================================== Debugging information would cause problems with instruction scheduling. =========================================================== Fixed access of virtual function tables in large-code programs which were compiled with /zc. =========================================================== Under circumstances too complex to explain, bad code would be generated causing all sorts of stuff to happen. =========================================================== A loop which had an induction variable whose initial and final values were known and in which the induction variable was not updated on every time through the loop would sometimes get thrown out. =========================================================== Arithmetic operations on signed 16-bit integers would not be properly folded, resulting in bogus values. =========================================================== Output from the C++ compiler would sometimes not reference the correct offset for string literals if -zc -ml was specified. =========================================================== Constant folding of operations which use the EDX:EAX forms of mulitply would generate an ICE #28. =========================================================== The code generator would propagate the result of a conversion from a temp to another temp into another convert on the same operand even though the conversions were being carried out in different manners. =========================================================== Assignments of incompatible types to bit-fields would not get converted properly. =========================================================== Floating point compares would not be handled correctly if they were not used as part of an if statement (possible if fortran). =========================================================== *************** ** C Library ** *************** Windows NT CLIB: - fixed dup() so that new handle is inheritable - fixed dup2() so that new handle is inheritable - fixed dup2() so that if 0, 1, or 2 are changed then Windows NT is notified so that POSIX redirection idioms work properly =========================================================== Windows NT CLIB: fixed _fullpath so that _fullpath( "con" ) works properly to get around a Windows NT bug (Microsoft has been notified and will fix NT for a future release) =========================================================== added _fileno() to <stdio.h> =========================================================== added POSIX errors to <errno.h> =========================================================== Corrected OS/2 1.x library to remove extraneous reference to ___FPE_int. Fixed Floating point exception support in 16-bit DOS library. =========================================================== Fixed fseek() function to report an error condition when attempting to flush buffers before seeking yields an error. =========================================================== Fixed signal handling of SIGINT and SIGBREAK under extended DOS for Rational and Pharlap extenders. =========================================================== Windows NT CLIB: corrected a problem where the POSIX file handle table was not initialized early enough for C++ static initializers to execute properly =========================================================== fixed abort() for 386 -3s model for DOS4G and NT environments =========================================================== Mixing C and FORTRAN in Windows NT applications did not work correctly. =========================================================== The bsearch function could segment violate if it was given an array which contained only one element and the element size was very large. =========================================================== The mktime() function did not properly handle some unrepresentable values. =========================================================== Windows NT CLIB: Fixed dup2() to close the destination handle before aliasing the source handle to it. =========================================================== Windows NT CLIB: Fixed utime() to set file time to local time rather than GMT time. =========================================================== __WinLines_sem had incorrect underscores in NT -3s library =========================================================== Added cover function for EnumFontFamilies in 386 Windows library =========================================================== The atanh function returned the negative of the correct value. =========================================================== Windows NT CLIB: - fixed opendir/readdir/closedir to match size constants in <direct.h> - fixed _dos_findfirst/_dos_findnext to match size constants in <dos.h> =========================================================== Windows NT CLIB: Fixed opendir/readdir/closedir to return dates in local time rather than GMT =========================================================== Windows NT CLIB: Fixed stat/fstat to return dates in local time rather than GMT =========================================================== Windows NT CLIB: Fixed _dos_setftime/_dos_getftime to deal in local DOS times rather than GMT =========================================================== printf() with the 'G' format for floating point output did not correctly determine when to use the 'E' format if the exponent was negative. =========================================================== fread() of TEXT mode files did not properly handle reads going past the end of the file's buffer. =========================================================== Windows NT CLIB: Fixed kbhit() so that it doesn't think a key is in the buffer when the mouse moves, focus changes, or the user touches the ctrl key =========================================================== In the OS/2 2.x C libraries, if a thread created using _beginthread() called a 16-bit function, the code that performed the 32 to 16-bit thunking could crash. The thunking code imposed some stack overhead that is now automatically supplied. =========================================================== Optimize fseek() for SEEK_CUR with negative offsets. =========================================================== Fixed a problem where floating point exceptions under Pharlap would not be properly caught if the exception handler offset was > 64K. =========================================================== Fixed freopen() for standard streams under default windowing applications. =========================================================== Modified OS/2 2.x signal() function to consider SIGINT and SIGBREAK to be the same thing. =========================================================== Fixed WILDARGV.C so that it can be compiled as a C++ source file. =========================================================== Fix scanf() family of functions to not modify the user variable if no match for the format string is found in the input stream. =========================================================== Fix return code from __exit() under 3s for 32 bit Windows. =========================================================== Fix fread() to always attempt to fill user buffer. =========================================================== The memory allocator has been improved for DOS/4GW. DPMI memory blocks will now be given back to the DPMI host when possible. 'realloc' will try to expand a DPMI memory block if possible rather than allocating a new DPMI memory block and copying the old memory block to the new memory block. =========================================================== Startup code for Rational DOS extender no longer zeros the entire BSS, since the DOS extender will zero the pages when they are first created. This will speed up loading of applications that have large uninitialized arrays. =========================================================== ****************** ** C++ Compiler ** ****************** dead code warnings leave dead code status alone now. =========================================================== static class temporaries caused problems during initialization of static items. =========================================================== __cdecl and __pascal don't force extern "C" semantics anymore (necessary for MFC 2.0 code). =========================================================== -dmacro#contents works properly now. =========================================================== The number of arguments was not checked properly for function pointer calls in all cases. =========================================================== locations improved for various error messages. =========================================================== access checking for file scope member definitions has been corrected. e.g., class S { enum { SIZE = 10 }; static int a[SIZE]; }; int S::a[SIZE]; ^^^^ - used to diagnose as access to private =========================================================== complex class template processing (nested class template expansions that occurred during a file scope member definition) could cause a compiler fault in certain circumstances. =========================================================== allow some anachronisms to function (necessary for MFC 2.0 to function properly). Note that the current ISO/ANSI C++ draft disallows this kind of code. The portability and semantics of these constructs is questionable. int address_of_parm_ref( X &r ) { return &r != NULL; } int address_of_local_ref( X *p ) { X &r = *p; return &r != NULL; } int S::NULL_this_check() { return this ? 0 : field; } =========================================================== fixed scanning of floating point constants that start with: [0-7]*[89] This looks like an octal constant but turns into a floating constant once we hit the '8' or '9'. =========================================================== Fixed the __stdcall calling convention to properly save EBX. =========================================================== LibMain and WinMain are default extern "C" functions now (MS C++ compatibility) =========================================================== - anonymous unions were not brace '{}' initialized properly - diagnosing too many initializers for anonymous unions did not work properly =========================================================== overload of class specific operator new incorrectly allowed some expressions if there was only one operator new declared in the class. A diagnostic is now issued for incorrect new expressions in this case. =========================================================== prevent compiler from faulting if errors were detected during class template instantiation and the type of the incorrectly compiled class was used subsequently. =========================================================== fixed a compiler page fault that was caused by a class consisting of only one data member (if it was an array of classes with a constructor). =========================================================== fixed a problem with destructing temporaries that are created during processing of the ctor initializer list in a constructor =========================================================== made it easier to mix C and C++ code by importing the C++ run-time library in modules where there is a extern "C" definition (this allows users to use a main() compiled with the C compiler) =========================================================== fixed semantic checks for <expr>.~T() and <expr>->~T() =========================================================== The -nm switch did not allow all the legal filename characters to be used in the module name. =========================================================== Fixed a problem with #pragma aux (alias) name handling of parameter lists. =========================================================== Tweaked compiler to move function modifiers in circumstances where the modifier can unambiguously be applied to a function type (this previously generated semantic errors). e.g., typedef int (* __pascal PF)( int, int ); ==> typedef int __pascal (* PF)( int, int ); =========================================================== Fixed a page fault in the compiler that was caused by multiple identical unnamed structs that required destructors. =========================================================== Made error messages regarding conflicting storage classes dump the previous symbol's location. =========================================================== if not compiling strict ANSI C++, an undeclared file-scope friend function can be static. =========================================================== - fixed default alignment of segments to be int - fixed alignment of symbols to depend on -ot (both fixes bring C++ in line with C semantics) =========================================================== - fixed a problem with some error messages not printing in strict ANSI C++ mode - made binding of a temporary to a non-const reference a level 1 warning =========================================================== - fixed a problem with -oe<n> not generating code for functions in some circumstances - fixed a problem that caused extra inline functions to have their code generated out of line =========================================================== fixed a page fault in the compiler when it was fed: template <class T> struct S { struct N { static int a; } }; // template <class T> int S<T>::N::a = 1; =========================================================== Fixed line number processing for #line <n> "file" directives. =========================================================== Fixed diagnosing of situations where an overload of a constructor could not be performed because there were no constructors with the right number of arguments and the number of available constructors was one =========================================================== Bumped a couple of annoying warnings up a couple of levels because there are no source code changes that can remove them short of #pragma-ing them out. - mangled name truncated (WATCOM C++ automatically generates a better name that will fit by chopping and adding a hash so this is purely informational) - cast causes ptr truncation (<i86.h> contained this) - defining pure virtual destructors (container classes) =========================================================== Fixed a problem where a default operator = was generated by the compiler even though the source code never tried to do an assignment of any classes. If the default op= could not be generated (because of access errors), this results in the rejection of correct code by the compiler. Example: struct A { private: void operator=(const A &); }; struct B : A { void operator=(int i); }; void fn( int i ) { B x; x = i; } =========================================================== Added check for assigning into a function type with +=, -=, etc. =========================================================== Fixed check in some pointer conversions to treat "char" as a unique type. Fixed function pointer conversion checks to handle enums and chars properly as unique types. =========================================================== Fixed the compiler so that the following initialization works properly: void foo() { char a[10]; char *p[1] = { a }; } =========================================================== Fixed template function binding for the case of non-reference function parameters and constant arguments. Example: template <class Q> struct S { int a; }; template <class T> void foo( S<T> x ) { } void ack( const S<int> &r ) { foo( r ); } =========================================================== Fixed catch type analysis so that enums are considered as unique types. =========================================================== Fixed a problem with user-defined conversion function access declarations incorrectly modifying access to related user-defined conversions. =========================================================== Suppress compiler generated names from lists of class members and local variables in debugging information. =========================================================== Fixed base class operator =() calls in compiler generated operator = functions to match Borland and CFRONT when the base class operator =() is virtual. =========================================================== Added extension that allows zero sized arrays to be declared at the end of structures for C compatibility. e.g., struct S { int a; int b; char c[]; }; =========================================================== The following bugs were fixed: A break in dead code could cause extra "missing return" warnings to be issued or could result in missing "dead code" diagnostics. Some always-TRUE or always-FALSE expressions were not being diagnosed as constant boolean expressions. Integral truncations during conversions were not being diagnosed. Compiler error 70 could be generated for virtual destructors or virtual operator= when some special calling conventions were present. Throwing member pointers or function names did not always work properly. An uncalled function whose address was taken, could be diagnosed as being unreferenced. When the expressions for some mem-initializers could be eliminated, they were not analysed and so errors could be missed. Objects passed to catch handlers were not always destructed properly. Spurious error messages could be generated for initialization of non-const objects with the ":" operator. Missing virtual destructor or operator= functions were not always detected at link time. =========================================================== Fixed code generator informational messages to be warnings rather than errors. =========================================================== Changed /oe default to better match the C compiler in optimization semantics. =========================================================== Ignore memory model modifiers enclosed within a typedef when declaring an automatic variable (this allows some function template code to work properly in the presence of based/near/far memory model modifiers) example: template <class T> void swap( T &l, T &r ) { T t; t = l; l = r; r = t; } int __far x, __far y; ... swap( x, y ); ... =========================================================== The -oe option did not allow for an equal sign between it and the number the way it should. =========================================================== ***************** ** C++ Library ** ***************** void operator delete( void * ) now checks for a NULL pointer before it calls free(). This is necessary because in some environments free() may be replaced with a non-ANSI conforming free() that will not accept a NULL pointer (problem was detected in a Autodesk ADS C++ application because free() is overridden by ADS.LIB). =========================================================== cout object has ios::unitbuf format flag set by default to support better mixing of C++ iostream and C stdio. =========================================================== istream::getline() function corrected to set ios::failbit on return if no characters have been stored into the callers buffer. =========================================================== corrected logic in filebuf destructor to discern if associated file should be closed. =========================================================== string::operator >> now respects the ios::skipws format flag. =========================================================== corrected length computation in string::operator()() for extracting substrings. =========================================================== corrected a problem with termination error messages causing problems in -3s 386 models =========================================================== Fixes to list iterator append and insert which were inserting the new entry at the beginning of the list after an iterator error have been made. Pointer and Value single and double linked list find, findLast and get member functions now work with empty lists. An index_range exception will be thrown if enabled. If not, a value list will return a default initialized object, and a pointer list will return an unintialized pointer. A problem was fixed for double linked list iterators over lists containing only one element. Iterators now have the following semantics (some semantics were previously undocumented): If an iterator is constructed without a list being passed to the constructor and is not reset with a list, only the reset member function is valid. All other operators or member functions will throw an undef_iter exception or return 0 (except for current which returns an default initialized object for value list iterators, and return an uninitialized pointer for pointer list iterators). After an iterator is reset or for a newly constructed iterator, the iterator is positioned before the first element in the list. When the iterator is positioned before the first element in the list, only the following operators/member functions are valid: operator(), operator++, operator+=, container and reset The first increment positions the iterator at the first element in the list. If the iterator is incremented past the last element in the list using operator(), operator++, operator+= then 0 will be returned. Attempts to further increment the iterator using operator(), operator++ or operator+= will throw an undef_iter exception if it is enabled, or return 0 if it is not. The iterator will then be positioned after the last element in the list. When an iterator for a double linked list is past the end of the list, operator-- and operator-= are valid, with the first decrement positioning the iterator to the last element in list. If the iterator for a double linked list is decremented before the first element in the list using operator-- or operator-= then 0 will be returned. Further attempts to decrement the iterator (or attempting to decrement an iterator which was reset or newly constructed) using operator-- or operator -= will throw an undef_iter exception if it is enabled, or return 0 if it is not. The iterator will then be positioned before the first element in the list. The following member functions have the following error semantics when an iterator is positioned before the first element or after the last element in the list: current: throw an undef_item exception if enabled, and return 0 in the intrusive iterator, a default initialized object in the value case, and an uninitialized pointer in the pointer case. append: throw an indef_iter exception if enabled, and return 0. insert: (double linked list iterators only) throw an undef_iter if enabled, and return 0. A new exception, out_of_memory was added to WCListExcept and is thrown, if enabled, when an insert or append fails. If the insert and append member functions fail, they will throw the out_of_memory exception if enabled for the list, and return 0. Non-zero is returned on success. This applies to all list classes and list iterator classes. =========================================================== Fixed the ifstream,ofstream,fstream constructors to handle the case where the user specifies an openmode bit but leaves off an indication of either ios::in or ios::out. The ios::in and ios::out are implied in the type of fstream being instantiated. =========================================================== Fixed the istream::getline() function to set ios::failbit if the read terminates because the buffer is full before the delimeter is seen. =========================================================== Fixed the string::alloc_mult_size() member function to properly set the new allocation size. =========================================================== Added following const member functions to the String class: String::operator char const * () const; char const & String::operator () ( size_t __pos ) const; char const & String::operator [] ( size_t __pos ) const; =========================================================== Changed istream::getline() and istream::get() functions to not set ios::failbit if no characters have been stored into the user buffer *and* the delimiting character has been seen. =========================================================== Fixed ifstream constructor to not implicitly create files when ios::in specified. =========================================================== Added ios::sync_with_stdio(). It is an obsolete function but has been added for compatibility. =========================================================== The strstream::seekoff() function has been fixed to handle ios::in|ios::out style seeks. It returns the new position of the put pointer. =========================================================== The strstream::strstream() constructor which takes an ios::openmode parameter now handles ios::atend or ios::append properly to only position the put pointer to the end of the buffer. =========================================================== The ifstream::ifstream() constructor that takes an ios::openmode parm implicitly has the ios::in bit turned on in all cases. The ofstream::ofstream() constructor that takes an ios::openmode parm implicitly has the ios::out bit turned on in all cases. =========================================================== Multi-threaded applications where more than one thread could throw an exception at the same time could go into an infinite loop in the C++ runtime. =========================================================== Multi-threaded NLM's sometimes failed to destroy static objects. =========================================================== Fixed Complex::operator-(double,complex) to properly set the sign of the imaginary component. =========================================================== ************* ** DOS4/GW ** ************* All of the DOS/4GW error messages have been reorganized and renumbered. There is currently no document that describes all the conditions under which the errors can occur. The familiar "unexpected interrupt" message has been revised for clarity. It now gives both the exception number and a brief description of the exception. On a transfer stack overflow, the error message now includes the number of the interrupt that provoked the overflow and the address at which the interrupt occurred. Setting DOS4G=NULLP now catches attempts to read from the null pointer as well as attempts to write to it. The virtual memory manager will now silently accept bad configuration options. An incompatibility with cheap clone IDE disk controllers has been fixed. Some of these controllers, when installed in machines with clock speeds relatively fast for their processors, and with other cards on the bus, randomly generate interrupt 0Fh even if configured to use a different IRQ. On a computer with one of these hardware configurations, DOS/4GW would crash at random points while loading or running; the problem would never occur in a Windows DOS box. We have worked around a bug in the EMM386 distributed with DOS 6.0, which cropped up only without the NOEMS and NOVCPI options. If another application that allocated expanded (EMS) memory ran beforehand, DOS/4GW would hang on startup. DOS/4GW on Fujitsu FMR series computers no longer causes the system to crash on an interrupt F3h. The SS and ESP are no longer reported as zero on a recoverable stack fault. DOS/4GW is less susceptible to recursive faults while reporting an exception. It will detect most recursive fault conditions and terminate immediately. The trap flag is now properly preserved if a hardware interrupt or processor exception occurs while single-stepping in a debugger. This bug caused debuggers to occasionally "run away" during stepping for no obvious reason. A bug in handling exceptions when ESP was slightly greater than an even multiple of 10000h has been corrected. A bug that caused the system to reboot on INT 31/0001 (Free Descriptor) when DS and ES contained the segment register being cancelled is fixed. An obscure bug in INT 31/0002 (Segment to Descriptor) has been fixed. INT 31/0100 (Allocate DOS Memory Block) and INT 31/0102 (Resize DOS Memory Block) will now properly return the number of available paragraphs in BX when more memory is requested than is actually available. Several bugs in INT 31h/601h (Unlock Linear Region) have been corrected. Two bugs in INT 31h/800h (Physical Address Mapping), one with mapping more than 64K at a time and one with multiple mappings, have been corrected. INT 2 (the non-maskable interrupt) is once again passed down. DOS/4GW will now return carry clear on any attempt to unlock memory that isn't managed by the virtual memory manager (for example, low memory). An off-by-one-page bug in calculating the maximum address managed by VMM has been fixed. A bug that reduced application performance on 80486 machines, even when all code and data fit into physical memory, has been corrected. DOS/4GW is now more careful about recognizing the names of programs which require special treatment, for example DOS4GW.EXE. It is now possible to name your program something like XXDOS4GW.EXE. DOS/4GW once again opens programs using DOS "compatibility mode". This change allows multiple users to read the executable simultaneously. For example, WVIDEO can read the debugging information even if the .EXE file has been kept open for demand loading. Ironically, we switched away from compatibility mode to support an earlier version of WVIDEO. A bug in handling 16-bit relocations in 32-bit code that prevented programs from loading has been corrected. Freeing a descriptor that happens to be in the FS or GS registers now works properly. The value in FS or GS will be zeroed. Chaining to a previously installed interrupt handler will now correctly return the zero and carry flags. A bug where the EAX register was corrupted on a switch from real mode to protected mode has been fixed. This bug was only a problem in the absence of a VCPI or DPMI memory manager, when VMM was running, and when DOS STACKS was not set to 0,0. =========================================================== ************************* ** FORTRAN 77 Compiler ** ************************* Passing a character array that was a field within a structure did not work correctly. =========================================================== It was possible for the compiler to crash when scanning code similar to the following: IF( X..AND. ) =========================================================== There was a problem with character variables in common when the /automatic switch was specified. =========================================================== The compiler would not evaluate the following expression correctly. 'A'//B.C//'D' B is a structure that contains a character field C. =========================================================== The usage message for WFC specified WFC386. =========================================================== Specifying the /d2 and /nodescriptor options would cause a compiler error 3 for CHARACTER*(*) arrays. =========================================================== The wrong error message would be issued when data initialization in a DATA statement contained more constants than data items or vice versa. =========================================================== The compiler could crash if the FUNCTION statement starting a function subprogram had a syntax error. =========================================================== The error file would not be closed if the only error was an invalid command line (i.e. an invalid option). =========================================================== A compiler error 2 and/or 3 would be issued when in-lining statement functions (with the /oi or /ox options). This would only occur if the statement function was of type complex and the expression for the statment function was a scalar (and vice versa). =========================================================== String descriptors for character variables were not being allocated on the stack when the /automatic switch was specified. =========================================================== A character select expression, other than a simple character variable, caused the compiler to crash. =========================================================== Fixed a problem with the /or (instruction scheduling) option and variables used in the IOSTAT= specifier of I/O statements. =========================================================== An incorrect warning message was being issued specifying that a character variable was used but not defined when the character variable was being defined by a substring operation as in the following example. CHARACTER*10 CH CH(1:5) = '12345' PRINT *, CH(1:5) end =========================================================== Compiler generated incorrect code for formatted i/o when format specification was a character variable and /format option was specified. =========================================================== ************************ ** FORTRAN 77 Library ** ************************ IARGC() and IGETARG() did not work in the default windowing environment for Windows. =========================================================== There were problems linking OS/2 2.x multithreaded applications when using "option caseexact". =========================================================== There was a problem printing a character string when the last byte of the string was the first byte of a double-byte character. Double-byte character processing is performed when one of the /japanese, /chinese or /korean options is specified. =========================================================== It was not possible to detect integer overflows detected during a read operation (i.e. converting character data to integer data) by using ERR= or IOSTAT=. =========================================================== Printing complex numbers using free format could cause *'s in the output field if the real/imaginary parts were negative and had 3-digit exponents. =========================================================== Fixed a problem reading binary files using non-character arrays. Binary files are files opened using ACCESS='SEQUENTIAL', FORM='UNFORMATTED' and RECORDTYPE='FIXED. =========================================================== Fixed a problem with DLL's where an open file would not get closed when the DLL terminated. =========================================================== If an OPEN statement failed, the unit would remain connected even if the unit was previously not connected. =========================================================== Fixed a problem with NAMELIST-directed I/O. Under certain circumstances, array names beginning with the letter 't' were interpreted as the value .TRUE. resulting in a "type mismatch" error being issued. =========================================================== Added SEEKUNIT() function that allows the programmer to seek a binary file. Binary files are files opened with ACCESS='SEQUENTIAL', FORM='UNFORMATTED' and RECORDTYPE='FIXED'. SEEKUNIT() is an integer function that returns zero if the operation succeeded and non-zero if it failed. It requires three integer arguments. The first is the unit number, the second is the offset within the file, and the third is SEEK_SET (seek from the beginning of the file) or SEEK_CUR (seek from the current position in the file). SEEK_SET and SEEK_CUR are defined in FSUBLIB.FI in the SRC\FORTRAN directory of the directory in which the software was installed. =========================================================== Invalid unformatted sequential files were created when an i/o list item spanned a physical record. For example, if the physical record length was 10 (the default is 256) and three integers were displayed (each integer requires 4 bytes), the last integer would not fit in the physical record and causes incorrect information to be placed in the file. ********************** ** Graphics Library ** ********************** Made _remappalette go faster in 16 and 256 colour modes. =========================================================== Added support for VESA devices in 386 protected mode. =========================================================== Improved the speed of the palette initialization in _setvideomode by making use of the faster _remappalette code. =========================================================== Added support for the FlashTek DOS extender. =========================================================== ******************** ** C Header Files ** ******************** Fixed NetWare 4.0 header file <stdlib.h> so that it works properly with -oi when compiled as C++. =========================================================== *************** ** Librarian ** *************** The last two elements of the ++ operator description on the help screen were reversed. =========================================================== The librarian now places COMDEF and COMDAT symbols into the library dictionary. This allows C++ template functions to be properly found and extracted from a library by the linker. =========================================================== When creating an import library for an Windows NT DLL, the librarian would crash if the total length of all the exported names was greater than 4K. =========================================================== Fixed check for overflowing library files under NT. =========================================================== ************ ** Linker ** ************ The file specified by "option resource" for QNX executables was being opened for read/write access rather than just read. =========================================================== The OPTION INTERNALRELOCS directive did not work properly. =========================================================== There was a bug in option eliminate that occured when a PUBDEF record redefined a COMDAT record that was a virtual function in a base class, and the inheriting class was instantiated the virtual function was referenced _after_ the comdat was redefined. (phew) This could be made to happen with lots of templates. =========================================================== For files that only contain templated code, the debugging information was slightly out of whack =========================================================== The linker will not search library dictionary for uninitialized communal variables now. (Needed so we can put communal variable definitions into the library dictionaries) =========================================================== In some cases it was possible for OS/2 1.x and Windows NT DLLs to lose a bit of uninitialized data. =========================================================== Added "format windows nt pharlap" and "runtime dosstyle" for the PharLap TNT dos extender. =========================================================== changed the message "DLL COMENT record invalid when not in OS2" to "export and import records not valid for %f" since the old message is rather archaic. (more than just OS2 supports DLLs now!) As well, disabled this warning message for the win386 extender. =========================================================== made the libfile command work with the LIB environment variable. =========================================================== put out linear addresses in qnx flat map files =========================================================== option rwr would not work if you compiled with /d2 but did not use debug all in the link file =========================================================== ********** ** Make ** ********** WMAKE for NT was compiled with DOS file component constants so it only allowed 8.3 file names. =========================================================== WMAKE now handles c: commands for OS/2 and NT. =========================================================== WMAKE correctly touches files to the current time under NT =========================================================== always build targets if any of their dependents are updated with commands =========================================================== execute .error command list for .symbolic and .precious targets if an error occurs during the command list =========================================================== *********************** ** Windows SDK Tools ** *********************** Fixed a resource compiler bug where Preload resources were sometimes corrupted when a fastload section was created in a large Windows executable. =========================================================== Fixed a resource compiler bug where double byte characters were not being properly translated to UNICODE for NT .res files. =========================================================== Fixed the resource compiler so it will not GP fault if there is no INCLUDE environment variable =========================================================== Fixed the resource compiler so it handles \a characters correctly in MENUITEM statements. =========================================================== Fixed the resource compiler so it handles custom controls in NT dialog boxes correctly. =========================================================== Fixed a resource compiler bug where windows executables were sometimes corrupted when run through the resource compiler without adding resources =========================================================== ************************ ** Windows Supervisor ** ************************ Objects > 1MB in size were not handled properly. This most frequently shows up with large bitmaps. =========================================================== Added code to check selector values before restoring DS and ES upon return from a DLL function call in case the DLL function ends up freeing the memory that the selector points to. =========================================================== The mmioOpen function is allowed to pass in a NULL pointer as the second parameter. The extender was causing an exception by trying to reference a field in this structure without checking to see if the pointer was NULL. =========================================================== ************ ** WVIDEO ** ************ If you were in a function that had 2 or more local variables which only differed in case and the debugger was set to perform case insensitive lookups (the default) then an attempt to reference one of the local variables would cause the debugger to fault. E.g.: foo() { int c, C; } And attempt to print the value of 'c' or 'C'. =========================================================== The QNX pmd.trp file did not properly access memory through the data selector when processing a dump file from a 32-bit flat model program. =========================================================== Make debug registers work when debugging a DOS4G application. =========================================================== The debugger would sometimes attempt to access a C++ member before a routine's prologue had completed execution. An error message is now issued in this case. =========================================================== If an error occurred parsing the command line options right at the end of the command line (e.g. "wvideo /" ) then a strange character would be displayed in the error message on some systems. =========================================================== Fixed a bug in WVPMHELP that could hang PM when a break point was hit in a dialog callback. =========================================================== The variable display window could not properly follow more than one level of pointer fields. =========================================================== Fixed the OS/2 hosted version of the debugger so that it works properly under PharLap's 286|DOS-Extender. In an OS/2 2.x DOS box you have to specify the /TRAP=STD16 option to force the use of the OS/2 1.x debugging interface code. =========================================================== Pressing the right mouse button did not work properly under OS/2. =========================================================== Comments in multi-line command lists (from invoke files) did not terminate properly at the end of line. =========================================================== Fixed some problems with asynchronous interruption of programs under DOS4G/W. =========================================================== Support use of ALT-<number> under OS/2 to allow entering any keyboard code. =========================================================== The default profile was using a colour scheme which did not look good on monochrome display adaptors. =========================================================== ************************************** ** IBM WorkFrame/2 Support Programs ** ************************************** Fixes to WorkFrame/2, available in version 1.1, now make it possible to support automatic make file creation. The language profiles for WATCOM languages have been changed to use IBM's make facility. =========================================================== WorkFrame/2 would crash when "link" was selected in the actions menu. =========================================================== ************ ** WTOUCH ** ************ Fixed so that setting dates and times under Windows/NT works correctly if the machine is not in the GMT timezone. =========================================================== Fixed a weird problem for Windows/NT that was caused by NT not letting us touch an existing file but letting us truncate it! The truncation is a result of WTOUCH trying to create a 0-length file because it assumes if it can't change the time-stamp, the file doesn't exist. Now we do not try to create a file if it already exists. ===========================================================