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Asked: 2026-05-25T00:00:30+00:00

I want to use U32 type but I can’t find the header where it

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I want to use U32 type but I can’t find the header where it is defined. Does anyone know?

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1 Answer

  1. Editorial Team

    There is no standard type called U32, but if you #include <cstdint> (stdint.h for C) you can use std::uint32_t1, a 32 bit unsigned integer, which is (I assume) what you want.

    Here is a list of types in the cstdint header:

    namespace std {
    int8_t
    int16_t
    int32_t
    int64_t
    int_fast8_t
    int_fast16_t
    int_fast32_t
    int_fast64_t
    int_least8_t
    int_least16_t
    int_least32_t
    int_least64_t
    intmax_t
    intptr_t
    uint8_t
    uint16_t
    uint32_t
    uint64_t
    uint_fast8_t
    uint_fast16_t
    uint_fast32_t
    uint_fast64_t
    uint_least8_t
    uint_least16_t
    uint_least32_t
    uint_least64_t
    uintmax_t
    uintptr_t
}

    1 Thanks Martinho Fernandes for pointing out that these types are in the namespace std.

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