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- /* handy.h
- *
- * Copyright (c) 1991-1997, Larry Wall
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- *
- */
-
- #if !defined(__STDC__)
- #ifdef NULL
- #undef NULL
- #endif
- #ifndef I286
- # define NULL 0
- #else
- # define NULL 0L
- #endif
- #endif
-
- #define Null(type) ((type)NULL)
- #define Nullch Null(char*)
- #define Nullfp Null(PerlIO*)
- #define Nullsv Null(SV*)
-
- #ifdef TRUE
- #undef TRUE
- #endif
- #ifdef FALSE
- #undef FALSE
- #endif
- #define TRUE (1)
- #define FALSE (0)
-
-
- /* XXX Configure ought to have a test for a boolean type, if I can
- just figure out all the headers such a test needs.
- Andy Dougherty August 1996
- */
- /* bool is built-in for g++-2.6.3, which might be used for an extension.
- If the extension includes <_G_config.h> before this file then
- _G_HAVE_BOOL will be properly set. If, however, the extension includes
- this file first, then you will have to manually set -DHAS_BOOL in
- your command line to avoid a conflict.
- */
- #ifdef _G_HAVE_BOOL
- # if _G_HAVE_BOOL
- # ifndef HAS_BOOL
- # define HAS_BOOL 1
- # endif
- # endif
- #endif
-
- /* The NeXT dynamic loader headers will not build with the bool macro
- So declare them now to clear confusion.
- */
- #ifdef NeXT
- # undef FALSE
- # undef TRUE
- typedef enum bool { FALSE = 0, TRUE = 1 } bool;
- # define ENUM_BOOL 1
- # ifndef HAS_BOOL
- # define HAS_BOOL 1
- # endif /* !HAS_BOOL */
- #endif /* NeXT */
-
- #ifndef HAS_BOOL
- # if defined(UTS) || defined(VMS)
- # define bool int
- # else
- # define bool char
- # endif
- #endif
-
- /* XXX A note on the perl source internal type system. The
- original intent was that I32 be *exactly* 32 bits.
-
- Currently, we only guarantee that I32 is *at least* 32 bits.
- Specifically, if int is 64 bits, then so is I32. (This is the case
- for the Cray.) This has the advantage of meshing nicely with
- standard library calls (where we pass an I32 and the library is
- expecting an int), but the disadvantage that an I32 is not 32 bits.
- Andy Dougherty August 1996
-
- There is no guarantee that there is *any* integral type with
- exactly 32 bits. It is perfectly legal for a system to have
- sizeof(short) == sizeof(int) == sizeof(long) == 8.
-
- Similarly, there is no guarantee that I16 and U16 have exactly 16
- bits.
-
- For dealing with issues that may arise from various 32/64-bit
- systems, we will ask Configure to check out
- SHORTSIZE == sizeof(short)
- INTSIZE == sizeof(int)
- LONGSIZE == sizeof(long)
- LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
- PTRSIZE == sizeof(void *)
- DOUBLESIZE == sizeof(double)
- LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
- Most of these are currently unused, but they are mentioned here so
- metaconfig will include the appropriate tests in Configure and
- we can then start to consider how best to deal with long long
- variables.
- Andy Dougherty April 1998
- */
-
- typedef char I8;
- typedef unsigned char U8;
- /* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
- Please search CHAR_MAX in perl.h for further details. */
- #define U8_MAX PERL_UCHAR_MAX
- #define U8_MIN PERL_UCHAR_MIN
-
- typedef short I16;
- typedef unsigned short U16;
- #define I16_MAX PERL_SHORT_MAX
- #define I16_MIN PERL_SHORT_MIN
- #define U16_MAX PERL_USHORT_MAX
- #define U16_MIN PERL_USHORT_MIN
-
- #if LONGSIZE > 4
- typedef int I32;
- typedef unsigned int U32;
- # define I32_MAX PERL_INT_MAX
- # define I32_MIN PERL_INT_MIN
- # define U32_MAX PERL_UINT_MAX
- # define U32_MIN PERL_UINT_MIN
- #else
- typedef long I32;
- typedef unsigned long U32;
- # define I32_MAX PERL_LONG_MAX
- # define I32_MIN PERL_LONG_MIN
- # define U32_MAX PERL_ULONG_MAX
- # define U32_MIN PERL_ULONG_MIN
- #endif
-
- #define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
- #define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
- #define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
-
- #define Ctl(ch) ((ch) & 037)
-
- #define strNE(s1,s2) (strcmp(s1,s2))
- #define strEQ(s1,s2) (!strcmp(s1,s2))
- #define strLT(s1,s2) (strcmp(s1,s2) < 0)
- #define strLE(s1,s2) (strcmp(s1,s2) <= 0)
- #define strGT(s1,s2) (strcmp(s1,s2) > 0)
- #define strGE(s1,s2) (strcmp(s1,s2) >= 0)
- #define strnNE(s1,s2,l) (strncmp(s1,s2,l))
- #define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
-
- #ifdef HAS_MEMCMP
- # define memNE(s1,s2,l) (memcmp(s1,s2,l))
- # define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
- #else
- # define memNE(s1,s2,l) (bcmp(s1,s2,l))
- # define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
- #endif
-
- /*
- * Character classes.
- *
- * Unfortunately, the introduction of locales means that we
- * can't trust isupper(), etc. to tell the truth. And when
- * it comes to /\w+/ with tainting enabled, we *must* be able
- * to trust our character classes.
- *
- * Therefore, the default tests in the text of Perl will be
- * independent of locale. Any code that wants to depend on
- * the current locale will use the tests that begin with "lc".
- */
-
- #ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
- # ifndef CTYPE256
- # define CTYPE256
- # endif
- #endif
-
- #define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
- #define isIDFIRST(c) (isALPHA(c) || (c) == '_')
- #define isALPHA(c) (isUPPER(c) || isLOWER(c))
- #define isSPACE(c) \
- ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
- #define isDIGIT(c) ((c) >= '0' && (c) <= '9')
- #ifdef EBCDIC
- /* In EBCDIC we do not do locales: therefore() isupper() is fine. */
- # define isUPPER(c) isupper(c)
- # define isLOWER(c) islower(c)
- # define isPRINT(c) isprint(c)
- # define toUPPER(c) toupper(c)
- # define toLOWER(c) tolower(c)
- #else
- # define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
- # define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
- # define isPRINT(c) (((c) > 32 && (c) < 127) || isSPACE(c))
- # define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
- # define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
- #endif
-
- #ifdef USE_NEXT_CTYPE
-
- # define isALNUM_LC(c) \
- (NXIsAlpha((unsigned int)(c)) || NXIsDigit((unsigned int)(c)) || \
- (char)(c) == '_')
- # define isIDFIRST_LC(c) \
- (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
- # define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
- # define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
- # define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
- # define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
- # define isLOWER_LC(c) NXIsLower((unsigned int)(c))
- # define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
- # define toUPPER_LC(c) NXToUpper((unsigned int)(c))
- # define toLOWER_LC(c) NXToLower((unsigned int)(c))
-
- #else /* !USE_NEXT_CTYPE */
- # if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
-
- # define isALNUM_LC(c) \
- (isalpha((unsigned char)(c)) || \
- isdigit((unsigned char)(c)) || (char)(c) == '_')
- # define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
- # define isALPHA_LC(c) isalpha((unsigned char)(c))
- # define isSPACE_LC(c) isspace((unsigned char)(c))
- # define isDIGIT_LC(c) isdigit((unsigned char)(c))
- # define isUPPER_LC(c) isupper((unsigned char)(c))
- # define isLOWER_LC(c) islower((unsigned char)(c))
- # define isPRINT_LC(c) isprint((unsigned char)(c))
- # define toUPPER_LC(c) toupper((unsigned char)(c))
- # define toLOWER_LC(c) tolower((unsigned char)(c))
-
- # else
-
- # define isALNUM_LC(c) \
- (isascii(c) && (isalpha(c) || isdigit(c) || (c) == '_'))
- # define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
- # define isALPHA_LC(c) (isascii(c) && isalpha(c))
- # define isSPACE_LC(c) (isascii(c) && isspace(c))
- # define isDIGIT_LC(c) (isascii(c) && isdigit(c))
- # define isUPPER_LC(c) (isascii(c) && isupper(c))
- # define isLOWER_LC(c) (isascii(c) && islower(c))
- # define isPRINT_LC(c) (isascii(c) && isprint(c))
- # define toUPPER_LC(c) toupper(c)
- # define toLOWER_LC(c) tolower(c)
-
- # endif
- #endif /* USE_NEXT_CTYPE */
-
- #ifdef EBCDIC
- EXT int ebcdic_control _((int));
- # define toCTRL(c) ebcdic_control(c)
- #else
- /* This conversion works both ways, strangely enough. */
- # define toCTRL(c) (toUPPER(c) ^ 64)
- #endif
-
- /* Line numbers are unsigned, 16 bits. */
- typedef U16 line_t;
- #ifdef lint
- #define NOLINE ((line_t)0)
- #else
- #define NOLINE ((line_t) 65535)
- #endif
-
-
- /* This looks obsolete (IZ):
-
- XXX LEAKTEST doesn't really work in perl5. There are direct calls to
- safemalloc() in the source, so LEAKTEST won't pick them up.
- Further, if you try LEAKTEST, you'll also end up calling
- Safefree, which might call safexfree() on some things that weren't
- malloced with safexmalloc. The correct "fix" to this, if anyone
- is interested, is to ensure that all calls go through the New and
- Renew macros.
- --Andy Dougherty August 1996
- */
-
- #ifndef lint
-
- #define NEWSV(x,len) newSV(len)
-
- #ifndef LEAKTEST
-
- #define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
- #define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
- #define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \
- memzero((char*)(v), (n)*sizeof(t))
- #define Renew(v,n,t) \
- (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
- #define Renewc(v,n,t,c) \
- (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
- #define Safefree(d) safefree((Malloc_t)(d))
-
- #else /* LEAKTEST */
-
- #define New(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
- #define Newc(x,v,n,t,c) (v = (c*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
- #define Newz(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))), \
- memzero((char*)(v), (n)*sizeof(t))
- #define Renew(v,n,t) \
- (v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
- #define Renewc(v,n,t,c) \
- (v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
- #define Safefree(d) safexfree((Malloc_t)(d))
-
- #define MAXXCOUNT 1400
- #define MAXY_SIZE 80
- #define MAXYCOUNT 16 /* (MAXY_SIZE/4 + 1) */
- extern long xcount[MAXXCOUNT];
- extern long lastxcount[MAXXCOUNT];
- extern long xycount[MAXXCOUNT][MAXYCOUNT];
- extern long lastxycount[MAXXCOUNT][MAXYCOUNT];
-
- #endif /* LEAKTEST */
-
- #define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
- #define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
- #define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
-
- #else /* lint */
-
- #define New(x,v,n,s) (v = Null(s *))
- #define Newc(x,v,n,s,c) (v = Null(s *))
- #define Newz(x,v,n,s) (v = Null(s *))
- #define Renew(v,n,s) (v = Null(s *))
- #define Move(s,d,n,t)
- #define Copy(s,d,n,t)
- #define Zero(d,n,t)
- #define Safefree(d) (d) = (d)
-
- #endif /* lint */
-
- #ifdef USE_STRUCT_COPY
- #define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
- #else
- #define StructCopy(s,d,t) Copy(s,d,1,t)
- #endif
-