Rethrowing an exception in Cygwin's gcc 4.3.2 causes an abort. This works
with gcc 3.4.4 and in Linux with gcc 4. Below is an example that is compiled
as: gcc rethrow.cpp -lstdc++.
Any insights would be appreciated.
-z
-----------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
void test2() throw(int)
{
throw 2;
}
int rethrow_fail() throw(int)
{
try
{
test2();
return(0);
}
catch(int i)
{
throw; // this throw causes the program to abort
}
}
int rethrow_ok() throw(int)
{
int n;
try
{
test2();
return(0);
}
catch(int i)
{
n = i;
}
throw n; // this throw works since outside of the catch
}
int main()
{
// -------------------------------------------------------
// the following works with the exception caught
// -------------------------------------------------------
try
{
printf("rethrow_ok return=%d\n", rethrow_ok());
}
catch(int n)
{
printf("rethrow_ok exception=%d\n", n);
}
// -------------------------------------------------------
// the following will fail with the program aborting when
// build with Cygwin gcc 4.3.2
// -------------------------------------------------------
try
{
printf("rethrow_fail return=%d\n", rethrow_fail());
}
catch(int n)
{
printf("rethrow_fail exception=%d\n", n);
}
return(0);
}
// override of abort so can trap abort
extern "C" void abort(void)
{
printf("abort\n");
exit(1);
}
-----------------------------------------------------------------------
--
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