NAME
intmax_t, uintmax_t - greatest-width basic integer types
LIBRARY
Standard C library (libc)
SYNOPSIS
#include <stdint.h>typedef\n /* ... */ \nintmax_t;\n
\ntypedef\n /* ... */ \nuintmax_t;#define INTMAX_WIDTH \n/* ... */
\n#define UINTMAX_WIDTH INTMAX_WIDTH#define INTMAX_MAX \n/* 2**(INTMAX_WIDTH - 1) - 1 */
\n#define INTMAX_MIN \n/* - 2**(INTMAX_WIDTH - 1) */
\n#define UINTMAX_MAX \n/* 2**UINTMAX_WIDTH - 1 */#define INTMAX_C(\nc\n)\n c \n##\n /* ... */\n
\n#define UINTMAX_C(\nc\n)\n c \n##\n /* ... */DESCRIPTION
intmax_t is a signed integer type capable of representing any value of any basic signed integer type supported by the implementation. It is capable of storing values in the range [INTMAX_MIN, INTMAX_MAX].
uintmax_t is an unsigned integer type capable of representing any value of any basic unsigned integer type supported by the implementation. It is capable of storing values in the range [0, UINTMAX_MAX].
The macros [U]INTMAX_WIDTH expand to the width in bits of these types.
The macros [U]INTMAX_MAX expand to the maximum value that these types can hold.
The macro INTMAX_MIN expands to the minimum value that intmax_t can hold.
The macros [U]INTMAX_C() expand their argument to an integer constant of type [u]intmax_t.
The length modifier for [u]intmax_t for the printf(3) and the scanf(3) families of functions is j; resulting commonly in %jd, %ji, %ju, or %jx for printing [u]intmax_t values.
STANDARDS
C11, POSIX.1-2008.
HISTORY
C99, POSIX.1-2001.
NOTES
The following header also provides these types: <inttypes.h>.
BUGS
These types may not be as large as extended integer types, such as __int128
SEE ALSO
int64_t(3type), intptr_t(3type), printf(3), strtoimax(3)