Standard library header <limits.h> - cppreference.com (original) (raw)
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) [edit] |
| MB_LEN_MAX | maximum number of bytes in a multibyte character (macro constant) [edit] |
| CHAR_WIDTH(C23) | bit width of char, same as CHAR_BIT (macro constant) |
| CHAR_MIN | minimum value of char (macro constant) [edit] |
| CHAR_MAX | maximum value of char (macro constant) [edit] |
| 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) [edit] |
| SCHAR_MAXSHRT_MAXINT_MAXLONG_MAXLLONG_MAX(C99) | maximum value of signed char, short, int, long and long long respectively (macro constant) [edit] |
| 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) [edit] |
| 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) |
[edit] 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 */