These services are available to applications that do not link with the POSIX subsystem.
When you are not using the POSIX subsystem, only basic C++ programming is permitted. In particular, the STDC++ library is not available outside the POSIX subsytem, restricting applications from the use of io and exception classes.
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abort |
abs |
atexit |
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atof |
atoi |
atol |
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bcmp |
bcopy |
bsearch |
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bzero |
calloc |
div |
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exit |
fabs |
ffs |
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free |
getchar |
getenv |
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getopt |
getsubopt |
getw |
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htonl |
htons |
isinf |
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isnan |
isprint |
labs |
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ldexp |
ldiv |
longjmp |
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malloc |
memccpy |
memchr |
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memcmp |
memcpy |
memmove |
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memory |
memset |
mkstemp |
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mktemp |
mktime |
modf |
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ntohl |
ntohs |
perror |
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printerr |
printf |
putc |
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putchar |
putenv |
puts |
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putw |
qsort |
rand |
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rand_r |
random |
realloc |
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realpath |
regcomp |
regerror |
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regex |
regexec |
regfree |
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remove |
rewind |
rindex |
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scandir |
scanf |
setbuf |
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setenv |
setjmp |
setstate |
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setvbuf |
snprintf |
sprintf |
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srand |
srandom |
sscanf |
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stdarg |
strcasecmp |
strcat |
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strchr |
strcmp |
strcoll |
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strcpy |
strcspn |
strdup |
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strerror |
strftime |
string |
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strlen |
strncasecmp |
strncat |
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strncmp |
strncpy |
strpbrk |
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strrchr |
strsep |
strspn |
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strstr |
strtod |
strtok |
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strtok_r |
strtol |
strtoul |
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strxfrm |
swab |
sys_errlist |
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sys_nerr |
taddr2uaddr |
tempnam |
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thread_once |
time |
tmpfile |
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tmpnam |
toascii |
tolower |
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toupper |
tzset |
uaddr2taddr |
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ungetc |
unlocked |
unsetenv |
|
vfprintf |
vprintf |
vsnprintf |
|
vsprintf |