Global Constants

The Microsoft run-time library contains definitions for global constants used by library routines. To use these constants, include the appropriate header files as indicated in the description for each constant. The global constants are listed in the following table.

32-Bit Windows Time/Date Formats	BUFSIZ
CLOCKS_PER_SEC, CLK_TCK	Commit-To-Disk Constants
_CRT_DISABLE_PERFCRIT_LOCKS	Data Type Constants
Environmental Constants	EOF, WEOF
errno Constants	Exception-Handling Constants
EXIT_SUCCESS, EXIT_FAILURE	File Attribute Constants
File Constants	File Permission Constants
File Read/Write Access Constants	File Translation Constants
FILENAME_MAX	FOPEN_MAX, _SYS_OPEN
_FREEENTRY, _USEDENTRY	fseek, _lseek Constants
Heap Constants	_HEAP_MAXREQ
HUGE_VAL, _HUGE	Locale Categories
_locking Constants	Math Constants
Math Error Constants	_MAX_ENV
MB_CUR_MAX	NULL (CRT)
Path Field Limits	RAND_MAX
setvbuf Constants	Sharing Constants
signal Constants	signal Action Constants
spawn Constants	_stat Structure st_mode Field Constants
stdin, stdout, stderr	TMP_MAX, L_tmpnam
Translation Mode Constants	_TRUNCATE
TZNAME_MAX	_WAIT_CHILD, _WAIT_GRANDCHILD
WCHAR_MAX	WCHAR_MIN

See Also

Reference

Global Variables

Considerations for Writing Prolog/Epilog Code

Other Resources

Run-Time Library Reference