编写一个函数,它接受一个无符号的 short int(2 个字节)并交换字节。例如,如果交换后 x = 258 ( 00000001 00000010 ),则 x 将为 513 ( 00000010 00000001 )。 到目前为止,这是我的代码: #include <iostream> using namespace std; unsigned short int ByteSwap(unsigned short int *x); int main() { ...
_byteswap_uint64、_byteswap_ulong、_byteswap_ushort c16rtomb, c32rtomb cabs、cabsf、cabsl _cabs cacos、cacosf、cacosl cacosh、cacoshf、cacoshl _callnewh calloc _calloc_dbg carg、cargf、cargl casin、casinf、casinl casinh、casinhf、casinhl ...
unsigned short _byteswap_ushort(unsigned short 1. 32位无符号,大小端转换 AI检测代码解析 unsigned long _byteswap_ulong(unsigned long 1. 64位无符号,大小端转换 AI检测代码解析 unsigned __int64 _byteswap_uint64(unsigned __int64 value); 1. convert big endian to little endian in C [without...
flatcchas no external dependencies except for build and compiler tools, and the C runtime library. With concurrent Ninja builds, a small client project can build flatcc with libraries, generate schema code, link the project and execute a test case in a few seconds, produce binaries between 15...
_byteswap_uint64、_byteswap_ulong、_byteswap_ushort c16rtomb, c32rtomb cabs、cabsf、cabsl _cabs cacos、cacosf、cacosl cacosh、cacoshf、cacoshl _callnewh calloc _calloc_dbg carg、cargf、cargl casin、casinf、casinl casinh、casinhf、casinhl ...
unsignedlong_byteswap_ulong(unsignedlongvalue); 64位无符号,大小端转换 unsigned __int64 _byteswap_uint64(unsigned __int64 value); 参考来源: convert big endian to little endian in C [without using provided func] Converting Little Endian to Big Endian ...
我们看到,标准库里面定义了个_byteswap_ulong,其实就是我们需要的函数。 (虽然反汇编的情况跟方案二差不多) 但是!这是没开优化的情况! (为了避免优化过头直接变成常量,这里加了个rev4函数) 可以看到,直接变成bswap了。方案二的优化结果同理。 这件事告诉我们:不是闲的蛋疼不要试图用人脑挑战编译器的汇编优化 ...
unsigned short _byteswap_ushort(unsigned short value);
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现在存在 std::endian 但在 c++23 添加 std::byteswap 之前的 c++20 无分支版本#include <bit> #include <type_traits> #include <concepts> #include <array> #include <cstring> #include <iostream> #include <bitset> template <int LEN, int