blob: 95a9951eb346c6fe095b15814d618bb3cd89f0f8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
AC_DEFUN([AC_CXX_USING_OPERATOR],
[AC_CACHE_CHECK(
whether compiler supports using ::operator<<,
ac_cv_cxx_using_operator,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <iostream>
std::ostream& operator<<(std::ostream&, struct s);],
[using ::operator<<; return 0;],
ac_cv_cxx_using_operator=1,
ac_cv_cxx_using_operator=0)
AC_LANG_RESTORE])
if test "$ac_cv_cxx_using_operator" = 1; then
AC_DEFINE(HAVE_USING_OPERATOR, 1, [define if the compiler supports using expression for operator])
fi])
|
