feat: fill char buffer with null char

those funcs always return null-terminated string but just to make it
sure
This commit is contained in:
ToruNiina 2023-10-11 01:44:06 +09:00
parent 947c995189
commit 937a7c45fe

View File

@ -27,6 +27,7 @@ inline std::string str_error(int errnum)
#ifdef _MSC_VER // MSVC
constexpr std::size_t bufsize = 256;
std::array<char, bufsize> buf;
buf.fill('\0');
const auto result = strerror_s(buf.data(), bufsize, errnum);
if(result != 0)
{
@ -39,11 +40,13 @@ inline std::string str_error(int errnum)
#elif defined(_GNU_SOURCE)
constexpr std::size_t bufsize = 256;
std::array<char, bufsize> buf;
buf.fill('\0');
const char* result = strerror_r(errnum, buf.data(), bufsize);
return std::string(result);
#elif (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600)
constexpr std::size_t bufsize = 256;
std::array<char, bufsize> buf;
buf.fill('\0');
const int result = strerror_r(errnum, buf.data(), bufsize);
if (result != 0)
{