@node Stdlib
@chapter Standard Utility Functions (@file{stdlib.h})

This chapter groups utility functions useful in a variety of programs.
The corresponding declarations are in the header file @file{stdlib.h}.

@menu 
* Function _Exit::       End program execution without cleaning up
* Function a64l::        String to long long
* Function abort::       Abnormal termination of a program
* Function abs::         Integer absolute value (magnitude)
* Function assert::      Macro for Debugging Diagnostics
* Function atexit::      Request execution of functions at program exit
* Function atof::        String to double or float
* Function atoi::        String to integer
* Function atoll::       String to long long
* Function bsearch::     Binary search
* Function calloc::      Allocate space for arrays
* Function div::         Divide two integers
* Function ecvtbuf::     Double or float to string of digits
* Function ecvt::        Double or float to string of digits (malloc result)
* Function __env_lock::  Lock environment list for getenv and setenv
* Function gcvt::        Format double or float as string
* Function exit::        End program execution
* Function getenv::      Look up environment variable
* Function itoa::        Integer to string
* Function labs::        Long integer absolute value (magnitude)
* Function ldiv::        Divide two long integers
* Function llabs::       Long long integer absolute value (magnitude)
* Function lldiv::       Divide two long long integers
* Function malloc::      Allocate and manage memory (malloc, realloc, free)
* Function mallinfo::    Get information about allocated memory
* Function __malloc_lock::	Lock memory pool for malloc and free
* Function mbsrtowcs::   Convert a character string to a wide-character string
* Function mbstowcs::    Minimal multibyte string to wide string converter
* Function mblen::       Minimal multibyte length
* Function mbtowc::      Minimal multibyte to wide character converter
* Function on_exit::     Request execution of functions at program exit
* Function qsort::       Array sort
* Function rand::        Pseudo-random numbers
* Function random::      Pseudo-random numbers
* Function rand48::      Uniformly distributed pseudo-random numbers
* Function rpmatch::     Determine whether response is affirmative or negative
* Function strtod::      String to double or float
* Function strtol::      String to long
* Function strtoll::     String to long long
* Function strtoul::     String to unsigned long
* Function strtoull::    String to unsigned long long
* Function wcsrtombs::   Convert a wide-character string to a character string
* Function wcstod::      Wide string to double or float
* Function wcstol::      Wide string to long
* Function wcstoll::     Wide string to long long
* Function wcstoul::     Wide string to unsigned long
* Function wcstoull::    Wide string to unsigned long long
* Function system::      Execute command string
* Function utoa::        Unsigned integer to string
* Function wcstombs::    Minimal wide string to multibyte string converter
* Function wctomb::      Minimal wide character to multibyte converter
@end menu

@page
@include stdlib/_Exit.def

@page
@include stdlib/a64l.def

@page
@include stdlib/abort.def

@page
@include stdlib/abs.def

@page
@include stdlib/assert.def

@page
@include stdlib/atexit.def

@page
@include stdlib/atof.def

@page
@include stdlib/atoi.def

@page
@include stdlib/atoll.def

@page
@include search/bsearch.def

@page
@include stdlib/calloc.def

@page
@include stdlib/div.def

@page
@include stdlib/efgcvt.def

@page
@include stdlib/ecvtbuf.def

@page
@include stdlib/envlock.def

@page
@include stdlib/exit.def

@page
@include stdlib/getenv.def

@page
@include stdlib/itoa.def

@page
@include stdlib/labs.def

@page
@include stdlib/ldiv.def

@page
@include stdlib/llabs.def

@page
@include stdlib/lldiv.def

@page
@include stdlib/malloc.def

@page
@include stdlib/mstats.def

@page
@include stdlib/mlock.def

@page
@include stdlib/mblen.def

@page
@include stdlib/mbsnrtowcs.def

@page
@include stdlib/mbstowcs.def

@page
@include stdlib/mbtowc.def

@page
@include stdlib/on_exit.def

@page
@include search/qsort.def

@page
@include stdlib/rand.def

@page
@include stdlib/random.def

@page
@include stdlib/rand48.def

@page
@include stdlib/rpmatch.def

@page
@include stdlib/strtod.def

@page
@include stdlib/strtol.def

@page
@include stdlib/strtoll.def

@page
@include stdlib/strtoul.def

@page
@include stdlib/strtoull.def

@page
@include stdlib/wcsnrtombs.def

@page
@include stdlib/wcstod.def

@page
@include stdlib/wcstol.def

@page
@include stdlib/wcstoll.def

@page
@include stdlib/wcstoul.def

@page
@include stdlib/wcstoull.def

@page
@include stdlib/system.def

@page
@include stdlib/utoa.def

@page
@include stdlib/wcstombs.def

@page
@include stdlib/wctomb.def