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Is assert(false) ignored in release mode?

Tags:

c++

posix

assert

visual-c++

I am using VC++. Is assert(false) ignored in release mode?

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Brian R. Bondy Avatar asked Nov 06 '08 22:11

Brian R. Bondy

People also ask

Does assert work in Release mode?

If compiling in release mode includes defining NDEBUG, then yes. The documentations states "The assert routine is available in both the release and debug versions of the C run-time libraries." Looking at the assert.

Does debug assert work in Release mode?

Assert works only in DEBUG mode - or, at least, when the DEBUG variable is defined. Otherwise, all those checks will simply get removed from the build result, so they will not impact your application when running in RELEASE mode.

What happens when assert fails in C?

The C language provides an <assert. h> header file and corresponding assert() macro that a programmer can use to make assertions. If an assertion fails, the assert() macro arranges to print a diagnostic message describing the condition that should have been true but was not, and then it kills the program.

What does assert 0 mean?

assert(0) or assert(false) is usually used to mark unreachable code, so that in debug mode a diagnostic message is emitted and the program is aborted when the supposedly unreachable is actually reached, which is a clear signal that the program isn't doing what we think it is.

1 Answers

If compiling in release mode includes defining NDEBUG, then yes.

See assert (CRT)

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activout.se Avatar answered Sep 22 '22 19:09

activout.se
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