intmax_t, uintmax_t - greatest-width basic integer types
Standard C library (libc)
#include <stdint.h> typedef /* ... */ intmax_t; typedef /* ... */ uintmax_t; #define INTMAX_WIDTH /* ... */ #define UINTMAX_WIDTH INTMAX_WIDTH #define INTMAX_MAX /* 2**(INTMAX_WIDTH - 1) - 1 */ #define INTMAX_MIN /* - 2**(INTMAX_WIDTH - 1) */ #define UINTMAX_MAX /* 2**UINTMAX_WIDTH - 1 */ #define INTMAX_C(c) c ## /* ... */ #define UINTMAX_C(c) c ## /* ... */
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.
The following header also provides these types: <inttypes.h>.
These types may not be as large as extended integer types, such as __int128
int64_t(3type), intptr_t(3type), printf(3), strtoimax(3) Linux man-pages 6.04 2023-03-30 intmax_t(3type)
Pages that refer to this page: intN_t(3type), intptr_t(3type)