assert(3) Library Functions Manual assert(3)
Name
assert - program verification
Syntax
#include <assert.h>
assert(expression)
Description
The macro indicates expression is expected to be true at this point in the program. It causes an with a diagnostic comment on the standard
error when expression is false (0). Compiling with the option -DNDEBUG effectively deletes from the program.
Diagnostics
`Assertion failed: a, file f n'. The a is the assertion that failed; f is the source file and n the source line number of the statement.
assert(3)