123 lines
3.3 KiB
Plaintext
123 lines
3.3 KiB
Plaintext
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dnl SIGC_CXX_TEMPLATE_SPECIALIZATION_OPERATOR_OVERLOAD()
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dnl
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dnl
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AC_DEFUN([SIGC_CXX_GCC_TEMPLATE_SPECIALIZATION_OPERATOR_OVERLOAD],[
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AC_MSG_CHECKING([if C++ compiler supports the use of a particular specialization when calling operator() template methods.])
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AC_TRY_COMPILE(
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[
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#include <iostream>
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class Thing
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{
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public:
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Thing()
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{}
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template <class T>
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void operator()(T a, T b)
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{
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T c = a + b;
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std::cout << c << std::endl;
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}
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};
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template<class T2>
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class OtherThing
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{
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public:
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void do_something()
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{
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Thing thing_;
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thing_.template operator()<T2>(1, 2);
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//This fails with or without the template keyword, on SUN Forte C++ 5.3, 5.4, and 5.5:
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}
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};
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],
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[
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OtherThing<int> thing;
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thing.do_something();
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],
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[
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sigcm_cxx_gcc_template_specialization_operator_overload=yes
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AC_DEFINE([SIGC_GCC_TEMPLATE_SPECIALIZATION_OPERATOR_OVERLOAD],[1],[does the C++ compiler support the use of a particular specialization when calling operator() template methods.])
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AC_MSG_RESULT([$sigcm_cxx_gcc_template_specialization_operator_overload])
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],[
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sigcm_cxx_gcc_template_specialization_operator_overload=no
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AC_MSG_RESULT([$sigcm_cxx_gcc_template_specialization_operator_overload])
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])
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])
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AC_DEFUN([SIGC_CXX_MSVC_TEMPLATE_SPECIALIZATION_OPERATOR_OVERLOAD],[
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AC_MSG_CHECKING([if C++ compiler supports the use of a particular specialization when calling operator() template methods omitting the template keyword.])
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AC_TRY_COMPILE(
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[
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#include <iostream>
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class Thing
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{
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public:
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Thing()
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{}
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template <class T>
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void operator()(T a, T b)
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{
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T c = a + b;
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std::cout << c << std::endl;
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}
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};
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template<class T2>
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class OtherThing
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{
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public:
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void do_something()
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{
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Thing thing_;
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thing_.operator()<T2>(1, 2);
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//This fails with or without the template keyword, on SUN Forte C++ 5.3, 5.4, and 5.5:
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}
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};
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],
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[
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OtherThing<int> thing;
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thing.do_something();
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],
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[
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sigcm_cxx_msvc_template_specialization_operator_overload=yes
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AC_DEFINE([SIGC_MSVC_TEMPLATE_SPECIALIZATION_OPERATOR_OVERLOAD],[1],[does the C++ compiler support the use of a particular specialization when calling operator() template methods omitting the template keyword.])
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AC_MSG_RESULT([$sigcm_cxx_msvc_template_specialization_operator_overload])
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],[
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sigcm_cxx_msvc_template_specialization_operator_overload=no
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AC_MSG_RESULT([$sigcm_cxx_msvc_template_specialization_operator_overload])
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])
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])
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AC_DEFUN([SIGC_CXX_SELF_REFERENCE_IN_MEMBER_INITIALIZATION], [
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AC_MSG_CHECKING([if C++ compiler allows usage of member function in initialization of static member field.])
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AC_TRY_COMPILE(
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[
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struct test
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{
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static char test_function();
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// Doesn't work with e.g. GCC 3.2. However, if test_function()
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// is wrapped in a nested structure, it works just fine.
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static const bool test_value
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= (sizeof(test_function()) == sizeof(char));
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};
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],
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[],
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[
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sigcm_cxx_self_reference_in_member_initialization=yes
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AC_DEFINE([SIGC_SELF_REFERENCE_IN_MEMBER_INITIALIZATION],[1],
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[does c++ compiler allows usage of member function in initialization of static member field.])
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AC_MSG_RESULT([$sigcm_cxx_self_reference_in_member_initialization])
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],[
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sigcm_cxx_self_reference_in_member_initialization=no
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AC_MSG_RESULT([$sigcm_cxx_self_reference_in_member_initialization])
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])
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])
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