Standard library header <cstdint> (C++11) - cppreference.com
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    Standard library header <cstdint> (C++11)

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    C++
     
    Standard library headers
     

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

    This header is part of the type support library, providing fixed width integer types and part of C numeric limits interface.

    Note

    For each of the typedef names listed above marked (optional), an implementation defines it if and only if the implementation provides a corresponding type.

    For each of the macros marked listed above (conditionally present), an implementation defines it if and only if the implementation defines the corresponding typedef name.

    Synopsis

    // all freestanding
#define __STDC_VERSION_STDINT_H__ 202311L

namespace std {
  using int8_t = /* implementation-defined */;     // optional
  using int16_t = /* implementation-defined */;    // optional
  using int32_t = /* implementation-defined */;    // optional
  using int64_t = /* implementation-defined */;    // optional
  using int/*N*/_t = /* see description */;        // optional

  using int_fast8_t = /* implementation-defined */;
  using int_fast16_t = /* implementation-defined */;
  using int_fast32_t = /* implementation-defined */;
  using int_fast64_t = /* implementation-defined */;
  using int_fast/*N*/_t = /* see description */;   // optional

  using int_least8_t = /* implementation-defined */;
  using int_least16_t = /* implementation-defined */;
  using int_least32_t = /* implementation-defined */;
  using int_least64_t = /* implementation-defined */;
  using int_least/*N*/_t = /* see description */;  // optional

  using intmax_t = /* implementation-defined */;
  using intptr_t = /* implementation-defined */;   // optional

  using uint8_t = /* implementation-defined */;    // optional
  using uint16_t = /* implementation-defined */;   // optional
  using uint32_t = /* implementation-defined */;   // optional
  using uint64_t = /* implementation-defined */;   // optional
  using uint/*N*/_t = /* see description */;       // optional

  using uint_fast8_t = /* implementation-defined */;
  using uint_fast16_t = /* implementation-defined */;
  using uint_fast32_t = /* implementation-defined */;
  using uint_fast64_t = /* implementation-defined */;
  using uint_fast/*N*/_t = /* see description */;  // optional

  using uint_least8_t = /* implementation-defined */;
  using uint_least16_t = /* implementation-defined */;
  using uint_least32_t = /* implementation-defined */;
  using uint_least64_t = /* implementation-defined */;
  using uint_least/*N*/_t = /* see description */; // optional

  using uintmax_t = /* implementation-defined */;
  using uintptr_t = /* implementation-defined */;  // optional
}

#define INT/*N*/_MIN                               /* see description */
#define INT/*N*/_MAX                               /* see description */
#define UINT/*N*/_MAX                              /* see description */
#define INT/*N*/_WIDTH                             /* see description */
#define UINT/*N*/_WIDTH                            /* see description */

#define INT_FAST/*N*/_MIN                          /* see description */
#define INT_FAST/*N*/_MAX                          /* see description */
#define UINT_FAST/*N*/_MAX                         /* see description */
#define INT_FAST/*N*/_WIDTH                        /* see description */
#define UINT_FAST/*N*/_WIDTH                       /* see description */

#define INT_LEAST/*N*/_MIN                         /* see description */
#define INT_LEAST/*N*/_MAX                         /* see description */
#define UINT_LEAST/*N*/_MAX                        /* see description */
#define INT_LEAST/*N*/_WIDTH                       /* see description */
#define UINT_LEAST/*N*/_WIDTH                      /* see description */

#define INTMAX_MIN                                 /* see description */
#define INTMAX_MAX                                 /* see description */
#define UINTMAX_MAX                                /* see description */
#define INTMAX_WIDTH                               /* see description */
#define UINTMAX_WIDTH                              /* see description */

#define INTPTR_MIN /* see description */           // optional
#define INTPTR_MAX /* see description */           // optional
#define UINTPTR_MAX /* see description */          // optional
#define INTPTR_WIDTH /* see description */         // optional
#define UINTPTR_WIDTH /* see description */        // optional

#define PTRDIFF_MIN                                /* see description */
#define PTRDIFF_MAX                                /* see description */
#define PTRDIFF_WIDTH                              /* see description */
#define SIZE_MAX                                   /* see description */
#define SIZE_WIDTH                                 /* see description */

#define SIG_ATOMIC_MIN                             /* see description */
#define SIG_ATOMIC_MAX                             /* see description */
#define SIG_ATOMIC_WIDTH                           /* see description */

#define WCHAR_MIN                                  /* see description */
#define WCHAR_MAX                                  /* see description */
#define WCHAR_WIDTH                                /* see description */

#define WINT_MIN                                   /* see description */
#define WINT_MAX                                   /* see description */
#define WINT_WIDTH                                 /* see description */

#define INT/*N*/_C(value)                          /* see description */
#define UINT/*N*/_C(value)                         /* see description */
#define INTMAX_C(value)                            /* see description */
#define UINTMAX_C(value)                           /* see description */