[^^Up^^]
[Menu]
[About The Guide]
abort() Abort Process and Return Error
abs() Calculate Absolute Value of Integer
absread() Read Disk Sectors
abswrite() Write Disk Sectors
access() Check File Permission Setting
acos() Calculate Arc Cosine
arg() Determine Angle in the Complex Plane
asctime() Convert Time from Structure to String
asin() Calculate Arc Sine
assert() Diagnostic Message Generator
atan() Calculate Arc Tangent
atan2() Calculate Arc Tangent of y/x
atexit() Register Exit Function
atof() Convert String to Double
atoi() Convert String to Integer
atol() Convert String to Long
bcd() Convert Number to Binary Coded Decimal
bdos() Invoke MS-DOS Function, Short Form
bdosptr() MS-DOS System Call
bioscom() Communications I/O
biosdisk() Hard Disk / Floppy I/O
biosequip() Check Equipment
bioskey() Keyboard Interface
biosprint() Printer I/O
biostime() Return the Time of Day
bsearch() Perform Binary Search
cabs() Calculate Absolute Value of Complex Number
ceil() Calculate Ceiling of Value
cgets() Get a Character String from the Console
chdir() Change Current Working Directory
chmod() Change File Permission Setting
_chmod() Change Access Mode of File
chsize() Changes File Size
_clear87() Get and Clear 8087/80287 Status Word
clearerr() Clear Error Indicator for a Stream
clock() Number of Clock Ticks Since Execution Started
close() Close File
_close() Close a File Handle
clreol() Clear Screen to End of Line
clrscr() Clears Screen
complex() Create a Complex Number
conj() Return Complex Conjugate of a Number
cos() Calculate Cosine
cosh() Calculate Hyperbolic Cosine
country() Return Country-Dependent Information
cprintf() Formatted Write to Console
cputs() Write a String to the Console
creat() Create a New File
_creat() Create a New File
creatnew() Create a New File
creattemp() Create a New File or Rewrite an Existing One
cscanf() Read Formatted Data from Console
ctime() Convert Time from Long Integer to String
ctrlbrk() Set Control-Break Handler
delay() Suspend Program Execution for Specified Time
delline() Deletes a Line
difftime() Find the Difference between Two Times
disable() Disable Interrupts (Macro)
div() Divide Two Integers
dosexterr() Get DOS Extended Error Values
dostounix() Convert Date and Time to UNIX Time Format
dup() Create Second Handle for Open File
dup2() Reassign a File Handle
ecvt() Convert Double to String
enable() Enable Interrupts (Macro)
eof() Test for End of File
exec...() An Overview of the Eight Exec Functions
execl() Execute Program Using: Arg List
execle() Execute Program Using: Arg List, Environment
execlp() Execute Program Using: Arg List, PATH
execlpe() Execute Program Using: Arg List, PATH, Environment
execv() Execute Program Using: Arg Array
execve() Execute Program Using: Arg Array, Environment
execvp() Execute Program Using: Arg Array, PATH
execvpe() Execute Program Using: Arg Array, PATH, Environment
exit() Terminate Process after Cleanup
_exit() Terminate Process without Cleanup
exp() Calculate Exponential
fabs() Calculate Absolute Value of Floating-Point
fclose() Close a Stream
fcloseall() Close All Open Streams
fcvt() Convert Double to String
fdopen() Open a Stream Using a Handle
feof() Detect Stream End-of-File (Macro)
ferror() Test for Error on a Stream (Macro)
fflush() Flush a Stream
fgetc() Read a Character from a Stream
fgetchar() Read a Character from Stdin
fgetpos() Get Current File Pointer Position
fgets() Read a String from Stream
filelength() Return File Length
fileno() Get File Handle Associated with Stream (Macro)
findfirst() Search Disk Directory
findnext() Fetch Files That Match findfirst()
floor() Calculate Floor of Value
flushall() Flush All Streams and Clear All Buffers
fmod() Calculate Floating-Point Remainder
fnmerge() Make New File Name
fnsplit() Split a Full Path Name into Its Components
fopen() Open a File
_fpreset() Reinitialize Floating-Point Math Package
fprintf() Write Formatted Data to Stream
fputc() Write a Character to a Stream
fputchar() Write a Character to a Stdout
fputs() Write a String to Stream
fread() Read Unformatted Data from Stream
freopen() Reassign a File Pointer
frexp() Get Mantissa and Exponent of Floating-Point Value
fscanf() Read Formatted Data from Screen
fseek() Reposition File Pointer to Given Location
fsetpos() Set Current File Pointer Position
fstat() Get Information about Open File
ftell() Get Current File Pointer Position
ftime() Store Current Time in timeb Struture
fwrite() Write Unformatted Data to Stream
gcvt() Convert Double to String
geninterrupt() Generate Software Interrupt (Macro)
getc() Read a Character from a Stream (Macro)
getcbrk() Get Control-Break Setting
getch() Get a Character from the Console without Echo
getchar() Read a Character from 'Stdin' (Macro)
getche() Get a Character from Console with Echo
getcurdir() Get Current Directory
getcwd() Get Path Name of Current Working Directory
getdate() Get Date
getdfree() Get Disk Free Space
getdisk() Get Current Drive
getdta() Get Disk Transfer Address
getenv() Get a Value from the Environment Table
getfat() Get File Allocation Table Information
getfatd() Get File Allocation Table Information
getftime() Get File Date and Time
getpass() Read a Password
getpid() Macro to Get Process ID
getpsp() Get the Program Segment Prefix
gets() Read a Line from 'Stdin'
gettext() Copy Text From Screen to Memory
gettextinfo() Get Current Text Window Information
gettime() Get System Time
getvect() Get Interrupt Vector Entry
getverify() Get Verify State
getw() Read an Integer from a Stream
gmtime() Convert Time from Long Integer to Structure
gotoxy() Position the Cursor in the Text Window
gsignal() Software Signals
harderr() Establish a Hardware Error Handler
hardresume() Hardware Error Handler Function
hardretn() Hardware Error Handler Function
highvideo() Set Text to High Intensity
hypot() Calculate the Hypotenuse of a Right Triangle
imag() Return Imaginary Part of a Complex Number
inport() Input from Hardware Port
inportb() Input from Hardware Port
insline() Insert Blank Line in Text Window
int86() Execute 8086 Software Interrupt
int86x() Set Segment Registers and Execute Software Interrupt
intdos() Invoke DOS Function, Long Form
intdosx() Set Seg Regs and Invoke DOS Function, Long Form
intr() Alternate 8086 Software Interrupt Interface
ioctl() Control I/O Device
isalnum() Test for Alphanumeric Character (Macro)
isalpha() Test for Alphabetic Character (Macro)
isascii() Test for ASCII Character (Macro)
isatty() Check for Character Device
iscntrl() Test for Control Character (Macro)
isdigit() Test for Digit (Macro)
isgraph() Test for Printable Character Except Space (Macro)
islower() Test for Lowercase (Macro)
isprint() Test for Printable Character (Macro)
ispunct() Test for Punctuation Character (Macro)
isspace() Test for White-Space Character (Macro)
isupper() Test for Uppercase (Macro)
isxdigit() Test for Hexadecimal Digit (Macro)
itoa() Convert Integer to String
kbhit() Check Keyboard Input Buffer for Character Waiting
keep() Exit and Remain Resident
labs() Calculate Absolute Value of Long Integer
ldexp() Convert Mantissa and Exponent to Floating Point
ldiv() Divide Two Longs
lfind() Linear Search for Key
localeconv() Return Pointer to Locale Structure
localtime() Convert Time from Int to Structure--Local Correction
lock() Set File Sharing Locks
log() Calculate Natural Logarithm
log10() Calculate Base 10 Logarithm
longjmp() Restore Program State
lowvideo() Set Text to Low Intensity
_lrotl() Rotate a Long Value to the Left
_lrotr() Rotate a Long Value to the Right
lsearch() Linear Search for Key; Add Key If Not Found
lseek() Reposition File Pointer to Specified Location
ltoa() Convert Long to String
matherr() Handle Math Error
_matherr() Floating-Point Error Handling Routine
max() Macro to Find Maximum of Two Integers
min() Macro to Find Minimum of Two Integers
mkdir() Create a New Directory
MK_FP() Make a Far Pointer (Macro)
mktemp() Create a Unique File Name
mktime() Convert Time to Calendar Format
modf() Split Floating Point into Integer Part and Fraction
movetext() Copies Text From One on Screen Rectangle to Another
norm() Calculate the Square of the Absolute Value
normvideo() Set Text to Original Intensity
nosound() Turn Speaker Off
open() Open a File
_open() Open a File For Reading or Writing
outport() Output word to a Hardware Port
outportb() Output byte to a Hardware Port (Macro)
parsfnm() Parse File Name
perror() Print Error Message
polar() Convert Polar Number to Complex Number
poly() Generate a Polynomial from Arguments
pow() Calculate X Raised to the Yth Power
pow10() Power Function
printf() Write Formatted String to Stdout
putc() Write a Character to Stream (Macro)
putch() Write a Character to the Console
putchar() Write a Character to Stdout (Macro)
putenv() Create New Environment Variables
puts() Write String to Stdout
puttext() Copy Text From Memory to Screen
putw() Write an Integer to Stream
qsort() Perform Quick Sort
raise() Send a Software Signal
rand() Get Pseudorandom Integer
randbrd() Random Block Read
randbwr() Random Block Write
random() Random Number Generator (Macro)
randomize() Initialize Random Number Generator (Macro)
read() Read Data from File
_read() Read Data from a File
real() Return Real Part of a Complex Number
remove() Delete a File
rename() Rename a File or Directory
rewind() Reposition File Pointer to Beginning of Stream
rmdir() Delete a Directory
_rotl() Rotate a Value to the Left
_rotr() Rotate a Value to the Right
scanf() Read Formatted Data from Stdin
searchpath() Search the MS-DOS Path
segread() Return Current Values of Segment Registers
setbuf() Control Stream Buffering
setcbrk() Set Control-Break Setting
_setcursortype() Set the Cursor Shape
setdate() Set MS-DOS Date
setdisk() Set Current Disk Drive
setdta() Set Disk Transfer Address
setftime() Set File Date and Time
setjmp() Save Program State
setlocale() Set the Locale
setmode() Set File-Translation Mode
settime() Set System Time
setvbuf() Control Stream Buffering and Buffer Size
setvect() Set Interrupt Vector Entry
setverify() Set Verify State
signal() Specify Signal Handler
sin() Calculate Sine
sinh() Calculate Hyperbolic Sine
sleep() Suspend Execution for Interval
sopen() Open a File for Shared Operations
sound() Turn Speaker On at Specified Frequency
spawn...() An Overview of the Eight Spawn Functions
spawnl() Execute Program Using: Arg List
spawnle() Execute Program Using: Arg List, Environment
spawnlp() Execute Program Using Arg List, PATH
spawnlpe() Execute Program Using Arg List, PATH, Environment
spawnv() Execute Program Using Arg Array
spawnve() Execute Program Using Arg Array, Environment
spawnvp() Execute Program Using Arg Array, PATH
spawnvpe() Execute Program Using Arg Array, PATH, Environment
sprintf() Write Formatted Data to String
sqrt() Calculate Square Root
srand() Set Random Starting Point
sscanf() Read Formatted Data from String
ssignal() Implement Software Signals
stat() Get File-Status Information on Named File
_status87() Get 8087/80287 Floating-Point Status Word
stime() Set Time
stpcpy() Copy One String into Another
strcat() Append a String
strchr() Find a Character in a String
strcmp() Compare Two Strings, Case Sensitive
strcmpi() Compare Two Strings, Case Insensitive
strcoll() Compare Two Strings According to Locale
strcpy() Copy One String to Another
strcspn() Scan One String for Another
strdup() Duplicate String
strerror() Save System Error Message
_strerror() Save System Error Message
strftime() Format Time for String Output
stricmp() Compare Two Strings, Case Insensitive
strlen() Get String Length
strlwr() Convert String to Lower Case
strncat() Append Specified Number of Characters to a String
strncmp() Compare n Characters of Two Strings, Case Sensitive
strncmpi() Compare n Characters of Strings, Case Insensitive
strncpy() Copy a Specified Number of Characters
strnicmp() Compare n Characters of Strings, Case Insensitive
strnset() Initialize n Characters of String
strpbrk() Scan String for Character from Character Set
strrchr() Scan String for Last Occurrence of Character
strrev() Reverse Characters in String
strset() Set All Characters in String
strspn() Find First Substring
strstr() Find Substring
strtod() Convert String to Double
strtok() Find Next Token in String
strtol() Convert String to Long Decimal Integer
strtoul() Convert String to an Unsigned Long Decimal Integer
strupr() Convert String to Uppercase
strxfrm() Copy a Specified Number of Characters
system() Execute DOS Command
tan() Calculate Tangent
tanh() Calculate Hyperbolic Tangent
tell() Get Current File Pointer Position
textattr() Set Both Foreground and Background Colors
textbackground() Set the Background Color
textcolor() Set the Foreground Color
textmode() Set Screen to Text Mode
time() Get Current System Time as Long Integer
tmpfile() Create a Temporary File
tmpnam() Generate A Temporary File Name
toascii() Convert 'c' to ASCII Character
tolower() Convert 'c' To Lowercase, If Appropriate
_tolower() Convert 'c' to Lowercase (Macro)
toupper() Convert 'c' to Uppercase, If Appropriate
_toupper() Convert 'c' to Uppercase (Macro)
tzset() Set External Time Variables, Environment Variables
ultoa() Convert Unsigned Long to String
ungetc() Push Character Back onto the Stream
ungetch() Push Back the Last Character Read from the Console
unixtodos() Convert Date and Time to DOS Format
unlink() Delete a File
unlock() Release File-Sharing Locks
va_arg() Access Variable Number of Arguments, ANSI C Style
vfprintf() Write Formatted Data to Stream
vfscanf() Perform Formatted Input from a Stream
vprintf() Write Formatted Data to Stdout
vscanf() Perform Formatted Input from Stdin
vsprintf() Write Formatted Data to String
vsscanf() Read Formatted Input from String
wherex() Get Horizontal Position of Cursor in Text Window
wherey() Get Vertical Position of Cursor in Text Window
window() Define a Text-mode Window
write() Write Data to a File
_write() Write Data to a File
This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
Written by Dave Pearson