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What is assert and when would I use it?
C Interview Questions and Answers
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What is assert and when would I use it?
It is a macro, defined in <assert.h>, for testing ``assertions''. An assertion essentially documents an assumption being made by the programmer, an assumption which, if violated, would indicate a serious programming error. For example, a function which was supposed to be called with a non-null pointer could write
assert(p != NULL);
A failed assertion terminates the program. Assertions should not be used to catch expected errors, such as malloc or fopen failures.
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