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Visual Studio 2012

Visual C++

C++ Language and Standard Libraries

C Run-Time Library Reference

Global Constants

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 Permission Constants

File Read/Write Access Constants

File Translation Constants

FILENAME_MAX

FOPEN_MAX, _SYS_OPEN

_FREEENTRY, _USEDENTRY

fseek, _lseek Constants

_HEAP_MAXREQ

HUGE_VAL, _HUGE

Locale Categories

_locking Constants

Math Error Constants

_MAX_ENV

MB_CUR_MAX

NULL

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

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_CRT_DISABLE_PERFCRIT_LOCKS

Visual Studio 2012

Disables performance-critical locking in I/O operations.

#define _CRT_DISABLE_PERFCRIT_LOCKS

Defining this symbol can improve performance in single-threaded I/O-bound programs by forcing all I/O operations to assume a single-threaded I/O model. For more information, see Multithreaded Libraries Performance.

Reference

Global Constants

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