What is the difference between the WINAPI SetLastError() and the C++ keyword throw? For example, are SetLastError(5); and throw 5; the same?
What is the difference between the WINAPI SetLastError() and the C++ keyword throw ?
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What is the difference between the WINAPI SetLastError() and the C++ keyword throw? For example, are SetLastError(5); and throw 5; the same?
SetLastError sets a simple global variable, it does nothing to the flow of the program.
throw would stop the flow of the running program, unwind the stack until it is caught somewhere with a try – catch clause. The program flow would then continue from the end of the catch.
I suggest reading this article, which explains the concept of exceptions. And read up on C++ exceptions.