[edit]Types

The implementation may define typedef namesintN_t,int_fastN_t,int_leastN_t,uintN_t,uint_fastN_t, anduint_leastN_t whenN is not 8, 16, 32 or 64. Typedef names of the formintN_t may only be defined if the implementation supports an integer type of that width with no padding. Thus,uint24_t denotes an unsigned integer type with a width of exactly 24 bits.

Each of the macros listed in below is defined if and only if the implementation defines the corresponding typedef name. The macrosINTN_C andUINTN_C correspond to the typedef namesint_leastN_t anduint_leastN_t, respectively.

[edit]Macro constants

[edit]Function macros for minimum-width integer constants

#include <stdint.h>UINT64_C(0x123)// might expand to 0x123ULL or 0x123UL

[edit]Format macro constants

[edit]Format constants for thefprintf family of functions

Each of thePRI macros listed here is defined if and only if the implementation defines the corresponding typedef name.

[edit]Format constants for thefscanf family of functions

Each of theSCN macros listed in here is defined if and only if the implementation defines the corresponding typedef name and has a suitablefscanf length modifier for the type.

[edit]Example

#include <inttypes.h>#include <stdio.h> int main(void){printf("%zu\n",sizeof(int64_t));printf("%s\n", PRId64);printf("%+" PRId64"\n", INT64_MIN);printf("%+" PRId64"\n", INT64_MAX);     int64_t n=7;printf("%+" PRId64"\n", n);}

8lld-9223372036854775808+9223372036854775807+7

[edit]References

[edit]See also

• Arithmetic types

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