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generated...
2007-08-05

(C) 2007 guidod
Download the M4 Source.

ac_cxx_old_for_scoping

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Synopsis
AC_CXX_OLD_FOR_SCOPING
, 
, 
Version

2004-02-04

Author

Todd Veldhuizen Luc Maisonobe <luc@spaceroots.org>

License

AllPermissive
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

Category

cryp.to ac-archive's C++ Support (released)

Documentation

If the compiler accepts the old for scoping rules (the scope of a variable declared inside the parentheses extends outside the for-body), define HAVE_OLD_FOR_SCOPING. Note that some compilers (notably g++ and egcs) support both new and old rules since they accept the old rules and only generate a warning.

M4 Source Code
AC_DEFUN([AC_CXX_OLD_FOR_SCOPING],
[AC_CACHE_CHECK(whether the compiler accepts the old for scoping rules,
ac_cv_cxx_old_for_scoping,
[AC_LANG_SAVE
 AC_LANG_CPLUSPLUS
 AC_TRY_COMPILE(,[int z;for (int i=0; i &lt; 10; ++i)z=z+i;z=i;return z;],
 ac_cv_cxx_old_for_scoping=yes, ac_cv_cxx_old_for_scoping=no)
 AC_LANG_RESTORE
])
if test "$ac_cv_cxx_old_for_scoping" = yes; then
  AC_DEFINE(HAVE_OLD_FOR_SCOPING,,[define if the compiler accepts the old for scoping rules])
fi
])