NAME

       intmax_t, uintmax_t - greatest-width basic integer types

LIBRARY

       Standard C library (libc)

SYNOPSIS

       #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 ## /* ... */

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)