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<a href="../index-2.html">cppreference.com</a> > <a href=
"index.html">Other Standard C Functions</a> > <a href=
"setjmp.html">setjmp</a>
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<div class="name-format">
setjmp
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<div class="syntax-name-format">
Syntax:
</div>
<pre class="syntax-box">
#include <csetjmp>
int setjmp( jmp_buf envbuf );
</pre>
<p>The setjmp() function saves the system stack in <em>envbuf</em>
for use by a later call to <a href="longjmp.html">longjmp</a>(). When
you first call setjmp(), its return value is zero. Later, when you
call <a href="longjmp.html">longjmp</a>(), the second argument of
<a href="longjmp.html">longjmp</a>() is what the return value of
setjmp() will be. Confused? Read about <a href=
"longjmp.html">longjmp</a>().</p>
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<a href="longjmp.html">longjmp</a>
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