Standard library header <limits.h>
From cppreference.com
This header is part of the type support library, in particular it's part of the C numeric limits interface.
Limits of core language integer types | |
BOOL_WIDTH (C23) |
bit width of _Bool (macro constant) |
BOOL_MAX (C29) |
maximum value of _Bool (macro constant) |
CHAR_BIT |
bit width of byte (macro constant) |
MB_LEN_MAX |
maximum number of bytes in a multibyte character (macro constant) |
CHAR_WIDTH (C23) |
bit width of char, same as CHAR_BIT (macro constant) |
CHAR_MIN |
minimum value of char (macro constant) |
CHAR_MAX |
maximum value of char (macro constant) |
SCHAR_WIDTHSHRT_WIDTHINT_WIDTHLONG_WIDTHLLONG_WIDTH (C23)(C23)(C23)(C23)(C23) |
bit width of signed char, short, int, long, and long long respectively (macro constant) |
SCHAR_MINSHRT_MININT_MINLONG_MINLLONG_MIN (C99) |
minimum value of signed char, short, int, long and long long respectively (macro constant) |
SCHAR_MAXSHRT_MAXINT_MAXLONG_MAXLLONG_MAX (C99) |
maximum value of signed char, short, int, long and long long respectively (macro constant) |
UCHAR_WIDTHUSHRT_WIDTHUINT_WIDTHULONG_WIDTHULLONG_WIDTH (C23)(C23)(C23)(C23)(C23) |
bit width of unsigned char, unsigned short, unsigned int, unsigned long, and unsigned long long respectively (macro constant) |
UCHAR_MAXUSHRT_MAXUINT_MAXULONG_MAXULLONG_MAX (C99) |
maximum value of unsigned char, unsigned short, unsigned int,unsigned long and unsigned long long respectively (macro constant) |
BITINT_MAXWIDTH (C23) |
maximum width N supported by the declaration of a bit-precise integer in the type specifier _BitInt(N), greater than or equal to ULLONG_WIDTH (macro constant) |
Synopsis
#define __STDC_VERSION_LIMITS_H__ 202311L
#define BITINT_MAXWIDTH /* see description */
#define BOOL_MAX /* see description */
#define BOOL_WIDTH /* see description */
#define CHAR_BIT /* see description */
#define CHAR_MAX /* see description */
#define CHAR_MIN /* see description */
#define CHAR_WIDTH /* see description */
#define INT_MAX /* see description */
#define INT_MIN /* see description */
#define INT_WIDTH /* see description */
#define LLONG_MAX /* see description */
#define LLONG_MIN /* see description */
#define LLONG_WIDTH /* see description */
#define LONG_MAX /* see description */
#define LONG_MIN /* see description */
#define LONG_WIDTH /* see description */
#define MB_LEN_MAX /* see description */
#define SCHAR_MAX /* see description */
#define SCHAR_MIN /* see description */
#define SCHAR_WIDTH /* see description */
#define SHRT_MAX /* see description */
#define SHRT_MIN /* see description */
#define SHRT_WIDTH /* see description */
#define UCHAR_MAX /* see description */
#define UCHAR_WIDTH /* see description */
#define UINT_MAX /* see description */
#define UINT_WIDTH /* see description */
#define ULLONG_MAX /* see description */
#define ULLONG_WIDTH /* see description */
#define ULONG_MAX /* see description */
#define ULONG_WIDTH /* see description */
#define USHRT_MAX /* see description */
#define USHRT_WIDTH /* see description */