Standard library header <cinttypes> (C++11)

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Standard library headers

Language support <cfloat> <climits> <compare> (C++20) <coroutine> (C++20) <csetjmp> <csignal> <cstdarg> <cstddef> <cstdint> (C++11) <cstdlib> <exception> <initializer_list> (C++11)    <limits> <new> <source_location> (C++20) <stdfloat> (C++23) <typeinfo> <version> (C++20) Concepts <concepts> (C++20) Diagnostics <cassert> <cerrno> <debugging> (C++26) <stacktrace> (C++23) <stdexcept> <system_error> (C++11) Memory management <memory> <memory_resource> (C++17) <scoped_allocator> (C++11) Metaprogramming <type_traits> (C++11) <ratio> (C++11)

General utilities <any> (C++17) <bitset> <bit> (C++20) <charconv> (C++17) <expected> (C++23) <format> (C++20) <functional> <optional> (C++17) <tuple> (C++11) <typeindex> (C++11) <utility> <variant> (C++17) Containers <array> (C++11) <deque> <flat_map> (C++23) <flat_set> (C++23) <forward_list> (C++11) <inplace_vector> (C++26)    <list> <map> <mdspan> (C++23) <queue> <set> <span> (C++20) <stack> <unordered_map> (C++11) <unordered_set> (C++11) <vector> Iterators <iterator> Ranges <generator> (C++23) <ranges> (C++20)

Algorithms <algorithm> <numeric> Strings <cctype> <cstring> <cuchar> (C++11) <cwchar> <cwctype> <string_view> (C++17) <string> Text processing <clocale> <codecvt> (C++11/17/26*) <locale> <regex> (C++11) <text_encoding> (C++26)    Numerics <cfenv> (C++11) <cmath> <complex> <linalg> (C++26) <numbers> (C++20) <random> (C++11) <valarray> Time <chrono> (C++11) <ctime> C compatibility <ccomplex> (C++11/17/20*) <ciso646> (until C++20) <cstdalign> (C++11/17/20*) <cstdbool> (C++11/17/20*) <ctgmath> (C++11/17/20*)

Input/output <cinttypes> (C++11) <cstdio> <filesystem> (C++17) <fstream> <iomanip> <iosfwd> <iostream> <ios> <istream> <ostream> <print> (C++23) <spanstream> (C++23) <sstream> <streambuf> <strstream> (C++98/26*) <syncstream> (C++20) Concurrency support <atomic> (C++11) <barrier> (C++20) <condition_variable> (C++11) <future> (C++11) <hazard_pointer> (C++26) <latch> (C++20) <mutex> (C++11) <rcu> (C++26) <semaphore> (C++20) <shared_mutex> (C++14) <stdatomic.h> (C++23) <stop_token> (C++20) <thread> (C++11) Execution support <execution> (C++17)

 

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

Includes
<cstdint> (C++11)	Fixed-width integer types and limits of other types
Types
imaxdiv_t (C++11)	structure type, returned by std::imaxdiv (typedef)
Functions
abs(std::intmax_t)imaxabs (C++11)(C++11)	computes absolute value of an integral value (\(\small{|x|}\)|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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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 (C++11)	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)

Synopsis

#include <cstdint>
 
namespace std
{
    using imaxdiv_t = /* see description */;
 
    constexpr intmax_t imaxabs(intmax_t j);
    constexpr imaxdiv_t imaxdiv(intmax_t numer, intmax_t denom);
    intmax_t strtoimax(const char* nptr, char** endptr, int base);
    uintmax_t strtoumax(const char* nptr, char** endptr, int base);
    intmax_t wcstoimax(const wchar_t* nptr, wchar_t** endptr, int base);
    uintmax_t wcstoumax(const wchar_t* nptr, wchar_t** endptr, int base);
 
    constexpr intmax_t abs(intmax_t);            // optional, see description
    constexpr imaxdiv_t div(intmax_t, intmax_t); // optional, see description
}
 
#define PRIdN /* see description */
#define PRIiN /* see description */
#define PRIoN /* see description */
#define PRIuN /* see description */
#define PRIxN /* see description */
#define PRIXN /* see description */
#define SCNdN /* see description */
#define SCNiN /* see description */
#define SCNoN /* see description */
#define SCNuN /* see description */
#define SCNxN /* see description */
#define PRIdLEASTN /* see description */
#define PRIiLEASTN /* see description */
#define PRIoLEASTN /* see description */
#define PRIuLEASTN /* see description */
#define PRIxLEASTN /* see description */
#define PRIXLEASTN /* see description */
#define SCNdLEASTN /* see description */
#define SCNiLEASTN /* see description */
#define SCNoLEASTN /* see description */
#define SCNuLEASTN /* see description */
#define SCNxLEASTN /* see description */
#define PRIdFASTN /* see description */
#define PRIiFASTN /* see description */
#define PRIoFASTN /* see description */
#define PRIuFASTN /* see description */
#define PRIxFASTN /* see description */
#define PRIXFASTN /* see description */
#define SCNdFASTN /* see description */
#define SCNiFASTN /* see description */
#define SCNoFASTN /* see description */
#define SCNuFASTN /* see description */
#define SCNxFASTN /* see description */
#define PRIdMAX /* see description */
#define PRIiMAX /* see description */
#define PRIoMAX /* see description */
#define PRIuMAX /* see description */
#define PRIxMAX /* see description */
#define PRIXMAX /* see description */
#define SCNdMAX /* see description */
#define SCNiMAX /* see description */
#define SCNoMAX /* see description */
#define SCNuMAX /* see description */
#define SCNxMAX /* see description */
#define PRIdPTR /* see description */
#define PRIiPTR /* see description */
#define PRIoPTR /* see description */
#define PRIuPTR /* see description */
#define PRIxPTR /* see description */
#define PRIXPTR /* see description */
#define SCNdPTR /* see description */
#define SCNiPTR /* see description */
#define SCNoPTR /* see description */
#define SCNuPTR /* see description */
#define SCNxPTR /* see description */