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#include "config.h"
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#include "alexcpt.h"
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#include <cstdio>
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#include <cstdarg>
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#include "opthelpers.h"
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namespace al {
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backend_exception::backend_exception(ALCenum code, const char *msg, ...) : mErrorCode{code}
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{
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va_list args, args2;
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va_start(args, msg);
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va_copy(args2, args);
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int msglen{std::vsnprintf(nullptr, 0, msg, args)};
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if(LIKELY(msglen > 0))
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{
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mMessage.resize(static_cast<size_t>(msglen)+1);
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std::vsnprintf(&mMessage[0], mMessage.length(), msg, args2);
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mMessage.pop_back();
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}
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va_end(args2);
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va_end(args);
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}
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} // namespace al
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