Size of fixed width integer types of cstdint

fixed_width_ints.cpp

#include <cstdint>
#include <iostream>

int main()
{
    std::cout << "Precise" << std::endl;

    std::cout << sizeof(int8_t  ) << std::endl;
    std::cout << sizeof(int16_t ) << std::endl;
    std::cout << sizeof(int32_t ) << std::endl;
    std::cout << sizeof(int64_t ) << std::endl;
    std::cout << sizeof(uint8_t ) << std::endl;
    std::cout << sizeof(uint16_t) << std::endl;
    std::cout << sizeof(uint32_t) << std::endl;
    std::cout << sizeof(uint64_t) << std::endl;

    std::cout << "Least" << std::endl;

    std::cout << sizeof(int_least8_t  ) << std::endl;
    std::cout << sizeof(int_least16_t ) << std::endl;
    std::cout << sizeof(int_least32_t ) << std::endl;
    std::cout << sizeof(int_least64_t ) << std::endl;
    std::cout << sizeof(uint_least8_t ) << std::endl;
    std::cout << sizeof(uint_least16_t) << std::endl;
    std::cout << sizeof(uint_least32_t) << std::endl;
    std::cout << sizeof(uint_least64_t) << std::endl;

    std::cout << "Fast" << std::endl;
    
    std::cout << sizeof(int_fast8_t  ) << std::endl;
    std::cout << sizeof(int_fast16_t ) << std::endl;
    std::cout << sizeof(int_fast32_t ) << std::endl;
    std::cout << sizeof(int_fast64_t ) << std::endl;
    std::cout << sizeof(uint_fast8_t ) << std::endl;
    std::cout << sizeof(uint_fast16_t) << std::endl;
    std::cout << sizeof(uint_fast32_t) << std::endl;
    std::cout << sizeof(uint_fast64_t) << std::endl;

    return 0;
}