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Autoconf Macro: ac_cxx_new_for_scoping
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<h1>
ac_cxx_new_for_scoping
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_CXX_NEW_FOR_SCOPING</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
If the compiler accepts the new for scoping rules (the scope of a variable
declared inside the parentheses is restricted to the for-body), define
HAVE_NEW_FOR_SCOPING.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Todd Veldhuizen, Luc Maisonobe <luc@spaceroots.org>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2004-02-04
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_CXX_NEW_FOR_SCOPING],
[AC_CACHE_CHECK(whether the compiler accepts the new for scoping rules,
ac_cv_cxx_new_for_scoping,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE(,[
int z = 0;
for (int i = 0; i < 10; ++i)
z = z + i;
for (int i = 0; i < 10; ++i)
z = z - i;
return z;],
ac_cv_cxx_new_for_scoping=yes, ac_cv_cxx_new_for_scoping=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_new_for_scoping" = yes; then
AC_DEFINE(HAVE_NEW_FOR_SCOPING,,[define if the compiler accepts the new for scoping rules])
fi
])
</pre>
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