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1/5/2010
local unwind is not supported on this platform
The implementation of Structured Exception Handling on this platform does not support a local unwind operation, which is required when prematurely leaving either the guarded section or the termination handler of a try-finally statement. If you need to leave the guarded section, use the __leave keyword. Leaving the termination handler prematurely can have undefined behavior and should be avoided.
The following code demonstrates two ways this error message can be generated.
int g;
int main(void)
{
__try {
if (g) return g; // requires local unwind
g = 1;
} __finally {
if (g) return g; // undefined; requires local unwind
g = 2;
}
return 0;
}