The Cygnus C Support Library

Full Configuration

libc 1.4

May 1993

• Standard Utility Functions (`stdlib.h')
  • abort---abnormal termination of a program
  • abs---integer absolute value (magnitude)
  • assert---Macro for Debugging Diagnostics
  • atexit---request execution of functions at program exit
  • atof, atoff---string to double or float
  • atoi, atol---string to integer
  • atol---convert string to long
  • bsearch---binary search
  • calloc---allocate space for arrays
  • div---divide two integers
  • ecvt,ecvtf,fcvt,fcvtf---double or float to string
  • gvcvt, gcvtf---format double or float as string
  • ecvtbuf, fcvtbuf---double or float to string
  • exit---end program execution
  • getenv---look up environment variable
  • labs---long integer absolute value
  • ldiv---divide two long integers
  • malloc, realloc, free---manage memory
  • mbtowc---minimal multibyte to wide char converter
  • qsort---sort an array
  • rand, srand---pseudo-random numbers
  • strtod, strtodf---string to double or float
  • strtol---string to long
  • strtoul---string to unsigned long
  • system---execute command string
  • wctomb---minimal wide char to multibyte converter
• Character Type Macros and Functions (`ctype.h')
  • isalnum---alphanumeric character predicate
  • isalpha---alphabetic character predicate
  • isascii---ASCII character predicate
  • iscntrl---control character predicate
  • isdigit---decimal digit predicate
  • islower---lower-case character predicate
  • isprint, isgraph---printable character predicates
  • ispunct---punctuation character predicate
  • isspace---whitespace character predicate
  • isupper---uppercase character predicate
  • isxdigit---hexadecimal digit predicate
  • toascii---force integers to ASCII range
  • tolower---translate characters to lower case
  • toupper---translate characters to upper case
• Input and Output (`stdio.h')
  • clearerr---clear file or stream error indicator
  • fclose---close a file
  • feof---test for end of file
  • ferror---test whether read/write error has occurred
  • fflush---flush buffered file output
  • fgetc---get a character from a file or stream
  • fgetpos---record position in a stream or file
  • fgets---get character string from a file or stream
  • fiprintf---format output to file (integer only)
  • fopen---open a file
  • fdopen---turn open file into a stream
  • fputc---write a character on a stream or file
  • fputs---write a character string in a file or stream
  • fread---read array elements from a file
  • freopen---open a file using an existing file descriptor
  • fseek---set file position
  • fsetpos---restore position of a stream or file
  • ftell---return position in a stream or file
  • fwrite---write array elements
  • getc---read a character (macro)
  • getchar---read a character (macro)
  • gets---get character string (obsolete, use fgets instead)
  • iprintf---write formatted output (integer only)
  • mktemp, mkstemp---generate unused file name
  • perror---print an error message on standard error
  • putc---write a character (macro)
  • putchar---write a character (macro)
  • puts---write a character string
  • remove---delete a file's name
  • rename---rename a file
  • rewind---reinitialize a file or stream
  • setbuf---specify full buffering for a file or stream
  • setvbuf---specify file or stream buffering
  • siprintf---write formatted output (integer only)
  • printf, fprintf, sprintf---format output
  • scanf, fscanf, sscanf---scan and format input
  • tmpfile---create a temporary file
  • tmpnam, tempnam---name for a temporary file
  • vprintf, vfprintf, vsprintf---format argument list
• Strings and Memory (`string.h')
  • bcmp---compare two memory areas
  • bcopy---copy memory regions
  • bzero---initialize memory to zero
  • index---search for character in string
  • memchr---find character in memory
  • memcmp---compare two memory areas
  • memcpy---copy memory regions
  • memmove---move possibly overlapping memory
  • memset---set an area of memory
  • rindex---reverse search for character in string
  • strcat---concatenate strings
  • strchr---search for character in string
  • strcmp---character string compare
  • strcoll---locale specific character string compare
  • strcpy---copy string
  • strcspn---count chars not in string
  • strerror---convert error number to string
  • strlen---character string length
  • strncat---concatenate strings
  • strncmp---character string compare
  • strncpy---counted copy string
  • strpbrk---find chars in string
  • strrchr---reverse search for character in string
  • strspn---find initial match
  • strstr---find string segment
  • strtok---get next token from a string
  • strxfrm---transform string
• Signal Handling (`signal.h')
  • raise---send a signal
  • signal---specify handler subroutine for a signal
• Time Functions (`time.h')
  • asctime---format time as string
  • clock---cumulative processor time
  • ctime---convert time to local and format as string
  • difftime---subtract two times
  • gmtime---convert time to UTC traditional form
  • localtime---convert time to local representation
  • mktime---convert time to arithmetic representation
  • strftime---flexible calendar time formatter
  • time---get current calendar time (as single number)
• Locale (`locale.h')
  • setlocale, localeconv---select or query locale
• Reentrancy
• System Calls
  • Definitions for OS interface
  • Reentrant covers for OS subroutines
• Variable Argument Lists
  • ANSI-standard macros, `stdarg.h'
    • Initialize variable argument list
    • Extract a value from argument list
    • Abandon a variable argument list
  • Traditional macros, `varargs.h'
    • Declare variable arguments
    • Initialize variable argument list
    • Extract a value from argument list
    • Abandon a variable argument list
• Index