diff options
Diffstat (limited to 'src/fp.cpp')
| -rw-r--r-- | src/fp.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
@@ -9,6 +9,8 @@ #include "proto.hpp" #include "low_func_llvm.hpp" #endif +#include <cybozu/atoi.hpp> +#include <cybozu/itoa.hpp> #ifdef _MSC_VER #pragma warning(disable : 4127) @@ -135,6 +137,34 @@ void UnitToHex(char *buf, size_t maxBufSize, Unit x) #endif } +// "123af" => { 0xaf, 0x23, 0x01 } +std::string hexStrToLittleEndian(const char *buf, size_t bufSize) +{ + std::string s; + s.reserve((bufSize + 1) / 2); + while (bufSize >= 2) { + uint8_t c = cybozu::hextoi(&buf[bufSize - 2], 2); + s += char(c); + bufSize -= 2; + } + if (bufSize == 1) { + uint8_t c = cybozu::hextoi(&buf[0], 1); + s += char(c); + } + return s; +} + +// { 0xaf, 0x23, 0x01 } => "0123af" +std::string littleEndianToHexStr(const char *buf, size_t bufSize) +{ + std::string s; + s.resize(bufSize * 2); + for (size_t i = 0; i < bufSize; i++) { + cybozu::itohex(&s[i * 2], 2, (uint8_t)buf[bufSize - 1 - i], false); + } + return s; +} + bool isEnableJIT() { #if defined(MCL_USE_XBYAK) |