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https://github.com/s1lentq/ReGameDLL_CS.git
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53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
#include <stdio.h>
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#if !defined(_WIN32)
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void NORETURN Sys_Error(const char *error, ...);
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// This file adds the necessary compatibility tricks to avoid symbols with
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// version GLIBCXX_3.4.16 and bigger, keeping binary compatibility with libstdc++ 4.6.1.
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namespace std
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{
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// We shouldn't be throwing exceptions at all, but it sadly turns out we call STL (inline) functions that do.
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void __throw_out_of_range_fmt(const char *fmt, ...)
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{
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va_list ap;
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char buf[1024]; // That should be big enough.
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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buf[sizeof(buf) - 1] = '\0';
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va_end(ap);
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Sys_Error(buf);
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}
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}; // namespace std
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// Technically, this symbol is not in GLIBCXX_3.4.20, but in CXXABI_1.3.8,
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// but that's equivalent, version-wise. Those calls are added by the compiler
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// itself on `new Class[n]` calls.
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extern "C"
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void __cxa_throw_bad_array_new_length()
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{
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Sys_Error("Bad array new length.");
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}
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#if __cplusplus >= 201402L
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// This operator delete sized deallocations was added in c++14
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// and required at least not less than CXXABI_1.3.9
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// we should to keep CXXABI_1.3.8 for binary compatibility with oldest libstdc++.
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// G++ and clang allow to compile C++14 code with -fno-sized-deallocation to disable the new feature,
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// so that our C++14 library code would never call that version of operator delete,
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// for other compilers we must override those operators for static linking to the library.
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void operator delete[](void *ptr, std::size_t size) noexcept
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{
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::operator delete(ptr);
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}
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void operator delete(void *ptr, std::size_t size) noexcept
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{
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::operator delete(ptr);
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}
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#endif
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#endif // !defined(_WIN32)
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