blob: cbf4b7db630b80a1a4137181ef60f92e20c570cd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# ======================================================================================
# http://autoconf-archive.cryp.to/ac_cxx_explicit_template_function_qualification.html
# ======================================================================================
#
# SYNOPSIS
#
# AC_CXX_EXPLICIT_TEMPLATE_FUNCTION_QUALIFICATION
#
# DESCRIPTION
#
# If the compiler supports explicit template function qualification,
# define HAVE_EXPLICIT_TEMPLATE_FUNCTION_QUALIFICATION.
#
# LICENSE
#
# Copyright (c) 2008 Todd Veldhuizen
# Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org>
#
# 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.
AC_DEFUN([AC_CXX_EXPLICIT_TEMPLATE_FUNCTION_QUALIFICATION],
[AC_CACHE_CHECK(whether the compiler supports explicit template function qualification,
ac_cv_cxx_explicit_template_function_qualification,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([
template<class Z> class A { public : A() {} };
template<class X, class Y> A<X> to (const A<Y>&) { return A<X>(); }
],[A<float> x; A<double> y = to<double>(x); return 0;],
ac_cv_cxx_explicit_template_function_qualification=yes, ac_cv_cxx_explicit_template_function_qualification=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_explicit_template_function_qualification" = yes; then
AC_DEFINE(HAVE_EXPLICIT_TEMPLATE_FUNCTION_QUALIFICATION,,
[define if the compiler supports explicit template function qualification])
fi
])
|
