Language Ccpp Cref Man Assert.htm

 <TITLE>assert</TITLE>
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<h3>ASSERT(3) Linux Programmer's Manual ASSERT(3)
</h3>
<h3>NAME
</h3> assert - Abort the program if assertion is false.
<h3>SYNOPSIS
</h3> #include &lt;assert.h&gt;
 void assert (int expression);
<h3>DESCRIPTION
</h3> assert() prints an error message to standard output and
 terminates the program by calling abort() if expression is
 false (i.e., compares equal to zero). This only happens
 when the macro NDEBUG is undefined.
<h3>RETURN VALUE
</h3> No value is returned.
<h3>CONFORMS TO
</h3> ANSI - C
<h3>BUGS
</h3> assert() is implemented as a macro; if the expression
 tested has side - effects, program behaviour will be dif-
 ferent depending on whether NDEBUG is defined. This may
 create Heisenbugs which go away when debugging is turned
 on.
</pre>
<hr>
<h3>SEE ALSO
</h3><p>
<a href=exit.htm>exit</a>, 
<a href=abort.htm>abort</a>, 
<pre>
<h3>GNU April 4, 1993 1
</h3>
</pre>
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