libsigcplusplus/build/cxx_std.m4

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## SIGC_CXX_HAS_SUN_REVERSE_ITERATOR()
##
## Check for Sun libCstd style std::reverse_iterator, which demands more than just one template parameter.
## and #define SIGC_HAVE_SUN_REVERSE_ITERATOR if found.
##
AC_DEFUN([SIGC_CXX_HAS_SUN_REVERSE_ITERATOR],
[
AC_CACHE_CHECK(
[for non-standard Sun libCstd reverse_iterator],
[sigc_cv_cxx_has_sun_reverse_iterator],
[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
#include <iterator>
]],[[
typedef std::reverse_iterator<char*, std::random_access_iterator_tag, char, char&, char*, int> ReverseIter;
]])],
[sigc_cv_cxx_has_sun_reverse_iterator='yes'],
[sigc_cv_cxx_has_sun_reverse_iterator='no']
)
])
AS_IF([test "x${sigc_cv_cxx_has_sun_reverse_iterator}" = 'xyes'],
[AC_DEFINE([SIGC_HAVE_SUN_REVERSE_ITERATOR], [1], [Define if the non-standard Sun reverse_iterator must be used.])])
])