Page 61 - C-Language

}

Now, if the assertion fails, an error message will read something like this

Assertion failed: p != NULL && "function f: p cannot be NULL", file main.c, line 5

The reason as to why this works is that a string literal always evaluates to non-zero (true). Adding
&& 1 to a Boolean expression has no effect. Thus, adding && "error message" has no effect either,
except that the compiler will display the entire expression that failed.

Read Assertion online: https://riptutorial.com/c/topic/555/assertion

https://riptutorial.com/ 37