Retro68/TestApps/ExceptionTest.cc

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/*
Copyright 2012 Wolfgang Thaller.
This file is part of Retro68.
Retro68 is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Retro68 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Retro68. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <exception>
#include <Events.h>
class Foo
{
};
void foobar()
{
throw Foo();
}
void UnexpectedExceptionOccurred()
{
printf("std::unexpected called.\n");
printf("Press Enter...\n");
getchar();
exit(1);
}
void UncaughtExceptionOccurred()
{
printf("std::terminate called.\n");
printf("Press Enter...\n");
getchar();
exit(1);
}
int main(int argc, char** argv)
{
std::set_unexpected(&UnexpectedExceptionOccurred);
std::set_terminate(&UncaughtExceptionOccurred);
bool throwFail = false;
bool catchFail = true;
for(int i = 0; i < 5; i++)
{
int n = i == 0 ? 1 : 100;
printf("Exception speed test (%3d iterations): ", n); fflush(stdout);
long start = TickCount();
for(int j = 0; j < n; j++)
{
try { foobar(); throwFail = true; } catch(...) { catchFail = false; }
}
long end = TickCount();
printf("%g ms per throw/catch\n",(end-start)*1000 / 60.0 / n);
}
if(throwFail)
printf("******** FAILURE: throw didn't really throw\n");
if(catchFail)
printf("******** FAILURE: catch block never entered\n");
printf("Press Enter...\n");
getchar();
return 0;
}