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C Library
cassert (assert.h)
cctype (ctype.h)
cerrno (errno.h)
cfloat (float.h)
ciso646 (iso646.h)
climits (limits.h)
clocale (locale.h)
cmath (math.h)
csetjmp (setjmp.h)
csignal (signal.h)
cstdarg (stdarg.h)
cstddef (stddef.h)
cstdio (stdio.h)
cstdlib (stdlib.h)
cstring (string.h)
ctime (time.h)

cstdlib (stdlib.h)
functions:
abort
abs
atexit
atof
atoi
atol
bsearch
calloc
div
exit
free
getenv
labs
ldiv
malloc
mblen
mbstowcs
mbtowc
qsort
rand
realloc
srand
strtod
strtol
strtoul
system
wcstombs
wctomb
functions (non-standard):
itoa
macros:
EXIT_FAILURE
EXIT_SUCCESS
MB_CUR_MAX
NULL
RAND_MAX
types:
div_t
ldiv_t
size_t

EXIT_FAILURE

macro

<cstdlib>

Failure termination code

This macro expands to a system-dependent integral expression that, when used as the argument for function exit, should signify that the application failed.

The opposite meaning can be specified with EXIT_SUCCESS.