69 lines
1.1 KiB
C++
69 lines
1.1 KiB
C++
// (C) Copyright Eric Friedman 2003.
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// Some modifications by Jeremiah Willcock and Jaakko Jarvi.
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// MACRO: BOOST_NO_SFINAE
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// TITLE: SFINAE (substitution failure is not an error)
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// DESCRIPTION: SFINAE not supported.
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namespace boost_no_sfinae {
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namespace f1_a {
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template <typename T>
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int f1(T*, float)
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{
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return 0;
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}
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} using f1_a::f1;
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namespace f1_b {
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template <typename T>
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int f1(T*, int, typename T::int_* = 0)
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{
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return 1;
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}
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} using f1_b::f1;
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namespace f2_a {
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template <typename T>
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int f2(T*, float)
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{
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return 2;
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}
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} using f2_a::f2;
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namespace f2_b {
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template <typename T>
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typename T::int_ f2(T*, int)
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{
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return 3;
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}
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} using f2_b::f2;
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struct test_t
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{
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typedef int int_;
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};
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struct test2_t {};
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int test()
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{
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test_t* t = 0;
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test2_t* t2 = 0;
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bool correct =
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(f1(t, 0) == 1) &&
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(f1(t2, 0) == 0) &&
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(f2(t, 0) == 3) &&
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(f2(t2, 0) == 2);
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return !correct;
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}
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}
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