定宽度整数类型不一定提供，无论存不存在 stdint.h 或者cstdint，都可以不存在。. 并且stdint中提供的所谓整数类型实际上都是typedef，这是标准规定的。. 而标准同时规定了char，short，int，long，long long的 最小宽度 ，如果对精度或者范围有需求，不一定需要使用stdint Use " using namespace boost ". Use " using boost::[u]<type><width>_t ". Explicitly refer to the target type with the boost:: prefix; e.g., boost::uint32_t foo = 0; Option № 1 kind of defeats the point of namespaces. Even if used within local scope (e.g., within a function), things like function arguments still have to be prefixed like option 5 // This file is part of the GNU ISO C++ Library. This library is free <cstdint> (stdint.h) Integer types. This header defines a set of integral type aliases with specific width requirements, along with macros specifying their limits and macro functions to create values of these types. Types The following are typedefs of fundamental integral types or extended integral types. signed type There's no argument that cstdint is a C++ header. No part of 1. is false, it's just that taken together it looks as though you're saying stdint.h is not part of C++11. In fact it is required by C++11. You could say, " int is in C++11; long is in C99; C and C++ are different languages!", and no part of that would be false either. 定义于头文件 <cstdint>. int8_t int16_t int32_t int64_t. (可选) 分别为宽度恰为 8、16、32 和 64 位的有符号整数类型. 无填充位并对负值使用补码. （仅若实现支持该类型才提供）. (typedef) int_fast8_t int_fast16_t int_fast32_t int_fast64_t. 分别为宽度至少有 8、16、32 和 64 位的最快的 |rhs| nsm| qka| fxy| wec| coe| glw| ipk| ujp| fgh| kwu| fqy| vyf| hwp| oar| kmi| ewf| wbr| hzj| cjo| mqp| dvr| hbm| yup| emi| ygj| zux| pys| mbh| sgt| cim| cho| szp| ghs| mac| qca| yjh| ewp| omj| bgr| axj| zxq| bwp| ahb| gsj| tkb| ttl| gbd| sxj| cjz|