# Standard library header <cinttypes>

From cppreference.com
< cpp‎ | header

This header was originally in the C standard library as `<inttypes.h>`.

Provides conversions from C byte and wide strings to std::intmax_t and std::uintmax_t, overloads some math functions for std::intmax_t and provide C style input/output format macros for the types declared in `<cstdint>`.

### Includes

`<cstdint>`

### Types

imaxdiv_t (C++11) | structure type, return of the std::imaxdiv function (typedef)

### Functions

abs(std::intmax_t)imaxabs (C++11)(C++11) | computes absolute value of an integral value (|x|) (function)
div(std::intmax_t)imaxdiv (C++11)(C++11) | computes quotient and remainder of integer division (function)
strtoimaxstrtoumax (C++11)(C++11) | converts a byte string to std::intmax_t or std::uintmax_t (function)
wcstoimaxwcstoumax (C++11)(C++11) | converts a wide string to std::intmax_t or std::uintmax_t (function)

### Macros

##### Format constants for the std::fprintf family of functions

PRId8PRId16PRId32PRId64PRIdLEAST8PRIdLEAST16PRIdLEAST32PRIdLEAST64PRIdFAST8PRIdFAST16PRIdFAST32PRIdFAST64PRIdMAXPRIdPTR

format conversion specifier to output a signed decimal integer value of type std::int8_t, std::int16_t, std::int32_t, std::int64_t, std::int_least8_t, std::int_least16_t, std::int_least32_t, std::int_least64_t, std::int_fast8_t, std::int_fast16_t, std::int_fast32_t, std::int_fast64_t, std::intmax_t, std::intptr_t respectively, equivalent to `d` for int
(macro constant)

PRIi8PRIi16PRIi32PRIi64PRIiLEAST8PRIiLEAST16PRIiLEAST32PRIiLEAST64PRIiFAST8PRIiFAST16PRIiFAST32PRIiFAST64PRIiMAXPRIiPTR

format conversion specifier to output a signed decimal integer value of type std::int8_t, std::int16_t, std::int32_t, std::int64_t, std::int_least8_t, std::int_least16_t, std::int_least32_t, std::int_least64_t, std::int_fast8_t, std::int_fast16_t, std::int_fast32_t, std::int_fast64_t, std::intmax_t, std::intptr_t respectively, equivalent to `i` for int
(macro constant)

PRIu8PRIu16PRIu32PRIu64PRIuLEAST8PRIuLEAST16PRIuLEAST32PRIuLEAST64PRIuFAST8PRIuFAST16PRIuFAST32PRIuFAST64PRIuMAXPRIuPTR

format conversion specifier to output an unsigned decimal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `u` for unsigned int
(macro constant)

PRIo8PRIo16PRIo32PRIo64PRIoLEAST8PRIoLEAST16PRIoLEAST32PRIoLEAST64PRIoFAST8PRIoFAST16PRIoFAST32PRIoFAST64PRIoMAXPRIoPTR

format conversion specifier to output an unsigned octal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `o` for unsigned int
(macro constant)

PRIx8PRIx16PRIx32PRIx64PRIxLEAST8PRIxLEAST16PRIxLEAST32PRIxLEAST64PRIxFAST8PRIxFAST16PRIxFAST32PRIxFAST64PRIxMAXPRIxPTR

format conversion specifier to output an unsigned lowercase hexadecimal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `x` for unsigned int
(macro constant)

PRIX8PRIX16PRIX32PRIX64PRIXLEAST8PRIXLEAST16PRIXLEAST32PRIXLEAST64PRIXFAST8PRIXFAST16PRIXFAST32PRIXFAST64PRIXMAXPRIXPTR

format conversion specifier to output an unsigned uppercase hexadecimal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `X` for unsigned int
(macro constant)

##### Format constants for the std::fscanf family of functions

SCNd8SCNd16SCNd32SCNd64SCNdLEAST8SCNdLEAST16SCNdLEAST32SCNdLEAST64SCNdFAST8SCNdFAST16SCNdFAST32SCNdFAST64SCNdMAXSCNdPTR

format conversion specifier to input a signed decimal integer value of type std::int8_t, std::int16_t, std::int32_t, std::int64_t, std::int_least8_t, std::int_least16_t, std::int_least32_t, std::int_least64_t, std::int_fast8_t, std::int_fast16_t, std::int_fast32_t, std::int_fast64_t, std::intmax_t, std::intptr_t respectively, equivalent to `d` for int
(macro constant)

SCNi8SCNi16SCNi32SCNi64SCNiLEAST8SCNiLEAST16SCNiLEAST32SCNiLEAST64SCNiFAST8SCNiFAST16SCNiFAST32SCNiFAST64SCNiMAXSCNiPTR

format conversion specifier to input a signed decimal/octal/hexadecimal integer value of type std::int8_t, std::int16_t, std::int32_t, std::int64_t, std::int_least8_t, std::int_least16_t, std::int_least32_t, std::int_least64_t, std::int_fast8_t, std::int_fast16_t, std::int_fast32_t, std::int_fast64_t, std::intmax_t, std::intptr_t respectively, equivalent to `i` for int
(macro constant)

SCNu8SCNu16SCNu32SCNu64SCNuLEAST8SCNuLEAST16SCNuLEAST32SCNuLEAST64SCNuFAST8SCNuFAST16SCNuFAST32SCNuFAST64SCNuMAXSCNuPTR

format conversion specifier to input an unsigned decimal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `u` for unsigned int
(macro constant)

SCNo8SCNo16SCNo32SCNo64SCNoLEAST8SCNoLEAST16SCNoLEAST32SCNoLEAST64SCNoFAST8SCNoFAST16SCNoFAST32SCNoFAST64SCNoMAXSCNoPTR

format conversion specifier to input an unsigned octal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `o` for unsigned int
(macro constant)

SCNx8SCNx16SCNx32SCNx64SCNxLEAST8SCNxLEAST16SCNxLEAST32SCNxLEAST64SCNxFAST8SCNxFAST16SCNxFAST32SCNxFAST64SCNxMAXSCNxPTR

format conversion specifier to input an unsigned hexadecimal integer value of type std::uint8_t, std::uint16_t, std::uint32_t, std::uint64_t, std::uint_least8_t, std::uint_least16_t, std::uint_least32_t, std::uint_least64_t, std::uint_fast8_t, std::uint_fast16_t, std::uint_fast32_t, std::uint_fast64_t, std::uintmax_t, std::uintptr_t respectively, equivalent to `x` for unsigned int
(macro constant)

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