ReChecker/common/stdc++compat.cpp
2022-09-25 00:01:43 +07:00

34 lines
957 B
C++

#include <stdio.h>
#if !defined(_WIN32)
void NORETURN Sys_Error(const char *error, ...);
// This file adds the necessary compatibility tricks to avoid symbols with
// version GLIBCXX_3.4.16 and bigger, keeping binary compatibility with libstdc++ 4.6.1.
namespace std
{
// We shouldn't be throwing exceptions at all, but it sadly turns out we call STL (inline) functions that do.
void __throw_out_of_range_fmt(const char *fmt, ...)
{
va_list ap;
char buf[1024]; // That should be big enough.
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
buf[sizeof(buf) - 1] = '\0';
va_end(ap);
Sys_Error(buf);
}
}; // namespace std
// Technically, this symbol is not in GLIBCXX_3.4.20, but in CXXABI_1.3.8,
// but that's equivalent, version-wise. Those calls are added by the compiler
// itself on `new Class[n]` calls.
extern "C"
void __cxa_throw_bad_array_new_length()
{
Sys_Error("Bad array new length.");
}
#endif // !defined(_WIN32)