C assert function writes error information to stderr and then aborts program

Syntax

C assert function has the following syntax.

void assert(int exp);

Header file

C assert function is from the header file assert.h.

Description

C assert function writes error information to stderr and then aborts program execution if the expression exp evaluates to zero.

We can define NDEBUG to ignore the assert() macros.

Example


#include <assert.h>
//from   w  w w. ja va  2  s.  com
int main(void){
  assert(1==2);

}

The code above generates the following result.





















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assert.h
ctype.h
math.h
setjmp.h
signal.h
stdio.h
stdlib.h
string.h
time.h
wctype.h