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