|
rpm-build |
9243a4 |
# ===========================================================================
|
|
rpm-build |
9243a4 |
# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
|
|
rpm-build |
9243a4 |
# ===========================================================================
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# SYNOPSIS
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# DESCRIPTION
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# Check for baseline language coverage in the compiler for the specified
|
|
rpm-build |
9243a4 |
# version of the C++ standard. If necessary, add switches to CXX and
|
|
rpm-build |
9243a4 |
# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard)
|
|
rpm-build |
9243a4 |
# or '14' (for the C++14 standard).
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# The second argument, if specified, indicates whether you insist on an
|
|
rpm-build |
9243a4 |
# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
|
|
rpm-build |
9243a4 |
# -std=c++11). If neither is specified, you get whatever works, with
|
|
rpm-build |
9243a4 |
# preference for an extended mode.
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# The third argument, if specified 'mandatory' or if left unspecified,
|
|
rpm-build |
9243a4 |
# indicates that baseline support for the specified C++ standard is
|
|
rpm-build |
9243a4 |
# required and that the macro should error out if no mode with that
|
|
rpm-build |
9243a4 |
# support is found. If specified 'optional', then configuration proceeds
|
|
rpm-build |
9243a4 |
# regardless, after defining HAVE_CXX${VERSION} if and only if a
|
|
rpm-build |
9243a4 |
# supporting mode is found.
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# LICENSE
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2015 Paul Norman <penorman@mac.com>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
|
|
rpm-build |
9243a4 |
# Copyright (c) 2016 Krzesimir Nowak <qdlacz@gmail.com>
|
|
rpm-build |
9243a4 |
#
|
|
rpm-build |
9243a4 |
# Copying and distribution of this file, with or without modification, are
|
|
rpm-build |
9243a4 |
# permitted in any medium without royalty provided the copyright notice
|
|
rpm-build |
9243a4 |
# and this notice are preserved. This file is offered as-is, without any
|
|
rpm-build |
9243a4 |
# warranty.
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#serial 7
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
|
|
rpm-build |
9243a4 |
dnl (serial version number 13).
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
AX_REQUIRE_DEFINED([AC_MSG_WARN])
|
|
rpm-build |
9243a4 |
AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
|
|
rpm-build |
9243a4 |
m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
|
|
rpm-build |
9243a4 |
[$1], [14], [ax_cxx_compile_alternatives="14 1y"],
|
|
rpm-build |
9243a4 |
[$1], [17], [ax_cxx_compile_alternatives="17 1z"],
|
|
rpm-build |
9243a4 |
[m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
|
|
rpm-build |
9243a4 |
m4_if([$2], [], [],
|
|
rpm-build |
9243a4 |
[$2], [ext], [],
|
|
rpm-build |
9243a4 |
[$2], [noext], [],
|
|
rpm-build |
9243a4 |
[m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl
|
|
rpm-build |
9243a4 |
m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
|
|
rpm-build |
9243a4 |
[$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
|
|
rpm-build |
9243a4 |
[$3], [optional], [ax_cxx_compile_cxx$1_required=false],
|
|
rpm-build |
9243a4 |
[m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
|
|
rpm-build |
9243a4 |
AC_LANG_PUSH([C++])dnl
|
|
rpm-build |
9243a4 |
ac_success=no
|
|
rpm-build |
9243a4 |
AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
|
|
rpm-build |
9243a4 |
ax_cv_cxx_compile_cxx$1,
|
|
rpm-build |
9243a4 |
[AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
|
|
rpm-build |
9243a4 |
[ax_cv_cxx_compile_cxx$1=yes],
|
|
rpm-build |
9243a4 |
[ax_cv_cxx_compile_cxx$1=no])])
|
|
rpm-build |
9243a4 |
if test x$ax_cv_cxx_compile_cxx$1 = xyes; then
|
|
rpm-build |
9243a4 |
ac_success=yes
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_if([$2], [noext], [], [dnl
|
|
rpm-build |
9243a4 |
if test x$ac_success = xno; then
|
|
rpm-build |
9243a4 |
for alternative in ${ax_cxx_compile_alternatives}; do
|
|
rpm-build |
9243a4 |
switch="-std=gnu++${alternative}"
|
|
rpm-build |
9243a4 |
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
|
|
rpm-build |
9243a4 |
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
|
|
rpm-build |
9243a4 |
$cachevar,
|
|
rpm-build |
9243a4 |
[ac_save_CXX="$CXX"
|
|
rpm-build |
9243a4 |
CXX="$CXX $switch"
|
|
rpm-build |
9243a4 |
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
|
|
rpm-build |
9243a4 |
[eval $cachevar=yes],
|
|
rpm-build |
9243a4 |
[eval $cachevar=no])
|
|
rpm-build |
9243a4 |
CXX="$ac_save_CXX"])
|
|
rpm-build |
9243a4 |
if eval test x\$$cachevar = xyes; then
|
|
rpm-build |
9243a4 |
CXX="$CXX $switch"
|
|
rpm-build |
9243a4 |
if test -n "$CXXCPP" ; then
|
|
rpm-build |
9243a4 |
CXXCPP="$CXXCPP $switch"
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
ac_success=yes
|
|
rpm-build |
9243a4 |
break
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
done
|
|
rpm-build |
9243a4 |
fi])
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_if([$2], [ext], [], [dnl
|
|
rpm-build |
9243a4 |
if test x$ac_success = xno; then
|
|
rpm-build |
9243a4 |
dnl HP's aCC needs +std=c++11 according to:
|
|
rpm-build |
9243a4 |
dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
|
|
rpm-build |
9243a4 |
dnl Cray's crayCC needs "-h std=c++11"
|
|
rpm-build |
9243a4 |
for alternative in ${ax_cxx_compile_alternatives}; do
|
|
rpm-build |
9243a4 |
for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
|
|
rpm-build |
9243a4 |
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
|
|
rpm-build |
9243a4 |
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
|
|
rpm-build |
9243a4 |
$cachevar,
|
|
rpm-build |
9243a4 |
[ac_save_CXX="$CXX"
|
|
rpm-build |
9243a4 |
CXX="$CXX $switch"
|
|
rpm-build |
9243a4 |
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
|
|
rpm-build |
9243a4 |
[eval $cachevar=yes],
|
|
rpm-build |
9243a4 |
[eval $cachevar=no])
|
|
rpm-build |
9243a4 |
CXX="$ac_save_CXX"])
|
|
rpm-build |
9243a4 |
if eval test x\$$cachevar = xyes; then
|
|
rpm-build |
9243a4 |
CXX="$CXX $switch"
|
|
rpm-build |
9243a4 |
if test -n "$CXXCPP" ; then
|
|
rpm-build |
9243a4 |
CXXCPP="$CXXCPP $switch"
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
ac_success=yes
|
|
rpm-build |
9243a4 |
break
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
done
|
|
rpm-build |
9243a4 |
if test x$ac_success = xyes; then
|
|
rpm-build |
9243a4 |
break
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
done
|
|
rpm-build |
9243a4 |
fi])
|
|
rpm-build |
9243a4 |
AC_LANG_POP([C++])
|
|
rpm-build |
9243a4 |
if test x$ax_cxx_compile_cxx$1_required = xtrue; then
|
|
rpm-build |
9243a4 |
if test x$ac_success = xno; then
|
|
rpm-build |
9243a4 |
AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
if test x$ac_success = xno; then
|
|
rpm-build |
9243a4 |
HAVE_CXX$1=0
|
|
rpm-build |
9243a4 |
AC_MSG_NOTICE([No compiler with C++$1 support was found])
|
|
rpm-build |
9243a4 |
else
|
|
rpm-build |
9243a4 |
HAVE_CXX$1=1
|
|
rpm-build |
9243a4 |
AC_DEFINE(HAVE_CXX$1,1,
|
|
rpm-build |
9243a4 |
[define if the compiler supports basic C++$1 syntax])
|
|
rpm-build |
9243a4 |
fi
|
|
rpm-build |
9243a4 |
AC_SUBST(HAVE_CXX$1)
|
|
rpm-build |
9243a4 |
m4_if([$1], [17], [AC_MSG_WARN([C++17 is not yet standardized, so the checks may change in incompatible ways anytime])])
|
|
rpm-build |
9243a4 |
])
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl Test body for checking C++11 support
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
|
|
rpm-build |
9243a4 |
)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl Test body for checking C++14 support
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
|
|
rpm-build |
9243a4 |
)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
|
|
rpm-build |
9243a4 |
_AX_CXX_COMPILE_STDCXX_testbody_new_in_17
|
|
rpm-build |
9243a4 |
)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl Tests for new features in C++11
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// If the compiler admits that it is not ready for C++11, why torture it?
|
|
rpm-build |
9243a4 |
// Hopefully, this will speed up the test.
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#ifndef __cplusplus
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++ compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#elif __cplusplus < 201103L && !(defined _MSC_VER)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++11 compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#else
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace cxx11
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_static_assert
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <typename T>
|
|
rpm-build |
9243a4 |
struct check
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static_assert(sizeof(int) <= sizeof(T), "not big enough");
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_final_override
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct Base
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
virtual void f() {}
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct Derived : public Base
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
virtual void f() override {}
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_double_right_angle_brackets
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T >
|
|
rpm-build |
9243a4 |
struct check {};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
typedef check<void> single_type;
|
|
rpm-build |
9243a4 |
typedef check<check<void>> double_type;
|
|
rpm-build |
9243a4 |
typedef check<check<check<void>>> triple_type;
|
|
rpm-build |
9243a4 |
typedef check<check<check<check<void>>>> quadruple_type;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_decltype
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
f()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int a = 1;
|
|
rpm-build |
9243a4 |
decltype(a) b = 2;
|
|
rpm-build |
9243a4 |
return a + b;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_type_deduction
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T1, typename T2 >
|
|
rpm-build |
9243a4 |
struct is_same
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static const bool value = false;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T >
|
|
rpm-build |
9243a4 |
struct is_same<T, T>
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static const bool value = true;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T1, typename T2 >
|
|
rpm-build |
9243a4 |
auto
|
|
rpm-build |
9243a4 |
add(T1 a1, T2 a2) -> decltype(a1 + a2)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return a1 + a2;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test(const int c, volatile int v)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(0)>::value == true, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(c)>::value == false, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(v)>::value == false, "");
|
|
rpm-build |
9243a4 |
auto ac = c;
|
|
rpm-build |
9243a4 |
auto av = v;
|
|
rpm-build |
9243a4 |
auto sumi = ac + av + 'x';
|
|
rpm-build |
9243a4 |
auto sumf = ac + av + 1.0;
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(ac)>::value == true, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(av)>::value == true, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(sumi)>::value == true, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(sumf)>::value == false, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
|
|
rpm-build |
9243a4 |
return (sumf > 0.0) ? sumi : add(c, v);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_noexcept
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int f() { return 0; }
|
|
rpm-build |
9243a4 |
int g() noexcept { return 0; }
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(noexcept(f()) == false, "");
|
|
rpm-build |
9243a4 |
static_assert(noexcept(g()) == true, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_constexpr
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename CharT >
|
|
rpm-build |
9243a4 |
unsigned long constexpr
|
|
rpm-build |
9243a4 |
strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return *s ? strlen_c_r(s + 1, acc + 1) : acc;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename CharT >
|
|
rpm-build |
9243a4 |
unsigned long constexpr
|
|
rpm-build |
9243a4 |
strlen_c(const CharT *const s) noexcept
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return strlen_c_r(s, 0UL);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("") == 0UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("1") == 1UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("example") == 7UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("another\0example") == 7UL, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_rvalue_references
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < int N >
|
|
rpm-build |
9243a4 |
struct answer
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static constexpr int value = N;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
answer<1> f(int&) { return answer<1>(); }
|
|
rpm-build |
9243a4 |
answer<2> f(const int&) { return answer<2>(); }
|
|
rpm-build |
9243a4 |
answer<3> f(int&&) { return answer<3>(); }
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void
|
|
rpm-build |
9243a4 |
test()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int i = 0;
|
|
rpm-build |
9243a4 |
const int c = 0;
|
|
rpm-build |
9243a4 |
static_assert(decltype(f(i))::value == 1, "");
|
|
rpm-build |
9243a4 |
static_assert(decltype(f(c))::value == 2, "");
|
|
rpm-build |
9243a4 |
static_assert(decltype(f(0))::value == 3, "");
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_uniform_initialization
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct test
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static const int zero {};
|
|
rpm-build |
9243a4 |
static const int one {1};
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(test::zero == 0, "");
|
|
rpm-build |
9243a4 |
static_assert(test::one == 1, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_lambdas
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void
|
|
rpm-build |
9243a4 |
test1()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
auto lambda1 = [](){};
|
|
rpm-build |
9243a4 |
auto lambda2 = lambda1;
|
|
rpm-build |
9243a4 |
lambda1();
|
|
rpm-build |
9243a4 |
lambda2();
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test2()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
auto a = [](int i, int j){ return i + j; }(1, 2);
|
|
rpm-build |
9243a4 |
auto b = []() -> int { return '0'; }();
|
|
rpm-build |
9243a4 |
auto c = [=](){ return a + b; }();
|
|
rpm-build |
9243a4 |
auto d = [&](){ return c; }();
|
|
rpm-build |
9243a4 |
auto e = [a, &b](int x) mutable {
|
|
rpm-build |
9243a4 |
const auto identity = [](int y){ return y; };
|
|
rpm-build |
9243a4 |
for (auto i = 0; i < a; ++i)
|
|
rpm-build |
9243a4 |
a += b--;
|
|
rpm-build |
9243a4 |
return x + identity(a + b);
|
|
rpm-build |
9243a4 |
}(0);
|
|
rpm-build |
9243a4 |
return a + b + c + d + e;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test3()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
const auto nullary = [](){ return 0; };
|
|
rpm-build |
9243a4 |
const auto unary = [](int x){ return x; };
|
|
rpm-build |
9243a4 |
using nullary_t = decltype(nullary);
|
|
rpm-build |
9243a4 |
using unary_t = decltype(unary);
|
|
rpm-build |
9243a4 |
const auto higher1st = [](nullary_t f){ return f(); };
|
|
rpm-build |
9243a4 |
const auto higher2nd = [unary](nullary_t f1){
|
|
rpm-build |
9243a4 |
return [unary, f1](unary_t f2){ return f2(unary(f1())); };
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
return higher1st(nullary) + higher2nd(nullary)(unary);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_variadic_templates
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <int...>
|
|
rpm-build |
9243a4 |
struct sum;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <int N0, int... N1toN>
|
|
rpm-build |
9243a4 |
struct sum<N0, N1toN...>
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static constexpr auto value = N0 + sum<N1toN...>::value;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <>
|
|
rpm-build |
9243a4 |
struct sum<>
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static constexpr auto value = 0;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(sum<>::value == 0, "");
|
|
rpm-build |
9243a4 |
static_assert(sum<1>::value == 1, "");
|
|
rpm-build |
9243a4 |
static_assert(sum<23>::value == 23, "");
|
|
rpm-build |
9243a4 |
static_assert(sum<1, 2>::value == 3, "");
|
|
rpm-build |
9243a4 |
static_assert(sum<5, 5, 11>::value == 21, "");
|
|
rpm-build |
9243a4 |
static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
|
|
rpm-build |
9243a4 |
// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
|
|
rpm-build |
9243a4 |
// because of this.
|
|
rpm-build |
9243a4 |
namespace test_template_alias_sfinae
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct foo {};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename T>
|
|
rpm-build |
9243a4 |
using member = typename T::member_type;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename T>
|
|
rpm-build |
9243a4 |
void func(...) {}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename T>
|
|
rpm-build |
9243a4 |
void func(member<T>*) {}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void test();
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void test() { func<foo>(0); }
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
} // namespace cxx11
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#endif // __cplusplus >= 201103L
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
]])
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl Tests for new features in C++14
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// If the compiler admits that it is not ready for C++14, why torture it?
|
|
rpm-build |
9243a4 |
// Hopefully, this will speed up the test.
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#ifndef __cplusplus
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++ compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#elif __cplusplus < 201402L
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++14 compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#else
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace cxx14
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_polymorphic_lambdas
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
const auto lambda = [](auto&&... args){
|
|
rpm-build |
9243a4 |
const auto istiny = [](auto x){
|
|
rpm-build |
9243a4 |
return (sizeof(x) == 1UL) ? 1 : 0;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
const int aretiny[] = { istiny(args)... };
|
|
rpm-build |
9243a4 |
return aretiny[0];
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
return lambda(1, 1L, 1.0f, '1');
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_binary_literals
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
constexpr auto ivii = 0b0000000000101010;
|
|
rpm-build |
9243a4 |
static_assert(ivii == 42, "wrong value");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_generalized_constexpr
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename CharT >
|
|
rpm-build |
9243a4 |
constexpr unsigned long
|
|
rpm-build |
9243a4 |
strlen_c(const CharT *const s) noexcept
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
auto length = 0UL;
|
|
rpm-build |
9243a4 |
for (auto p = s; *p; ++p)
|
|
rpm-build |
9243a4 |
++length;
|
|
rpm-build |
9243a4 |
return length;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("") == 0UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("x") == 1UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("test") == 4UL, "");
|
|
rpm-build |
9243a4 |
static_assert(strlen_c("another\0test") == 7UL, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_lambda_init_capture
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
auto x = 0;
|
|
rpm-build |
9243a4 |
const auto lambda1 = [a = x](int b){ return a + b; };
|
|
rpm-build |
9243a4 |
const auto lambda2 = [a = lambda1(x)](){ return a; };
|
|
rpm-build |
9243a4 |
return lambda2();
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_digit_separators
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
constexpr auto ten_million = 100'000'000;
|
|
rpm-build |
9243a4 |
static_assert(ten_million == 100000000, "");
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_return_type_deduction
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
auto f(int& x) { return x; }
|
|
rpm-build |
9243a4 |
decltype(auto) g(int& x) { return x; }
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T1, typename T2 >
|
|
rpm-build |
9243a4 |
struct is_same
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static constexpr auto value = false;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template < typename T >
|
|
rpm-build |
9243a4 |
struct is_same<T, T>
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
static constexpr auto value = true;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int
|
|
rpm-build |
9243a4 |
test()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
auto x = 0;
|
|
rpm-build |
9243a4 |
static_assert(is_same<int, decltype(f(x))>::value, "");
|
|
rpm-build |
9243a4 |
static_assert(is_same<int&, decltype(g(x))>::value, "");
|
|
rpm-build |
9243a4 |
return x;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
} // namespace cxx14
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#endif // __cplusplus >= 201402L
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
]])
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
dnl Tests for new features in C++17
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// If the compiler admits that it is not ready for C++17, why torture it?
|
|
rpm-build |
9243a4 |
// Hopefully, this will speed up the test.
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#ifndef __cplusplus
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++ compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#elif __cplusplus <= 201402L
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#error "This is not a C++17 compiler"
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#else
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#if defined(__clang__)
|
|
rpm-build |
9243a4 |
#define REALLY_CLANG
|
|
rpm-build |
9243a4 |
#else
|
|
rpm-build |
9243a4 |
#if defined(__GNUC__)
|
|
rpm-build |
9243a4 |
#define REALLY_GCC
|
|
rpm-build |
9243a4 |
#endif
|
|
rpm-build |
9243a4 |
#endif
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#include <initializer_list>
|
|
rpm-build |
9243a4 |
#include <utility>
|
|
rpm-build |
9243a4 |
#include <type_traits>
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace cxx17
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#if !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
namespace test_constexpr_lambdas
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// TODO: test it with clang++ from git
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
constexpr int foo = [](){return 42;}();
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
#endif // !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test::nested_namespace::definitions
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_fold_expression
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename... Args>
|
|
rpm-build |
9243a4 |
int multiply(Args... args)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return (args * ... * 1);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename... Args>
|
|
rpm-build |
9243a4 |
bool all(Args... args)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return (args && ...);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_extended_static_assert
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert (true);
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_auto_brace_init_list
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
auto foo = {5};
|
|
rpm-build |
9243a4 |
auto bar {5};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
|
|
rpm-build |
9243a4 |
static_assert(std::is_same<int, decltype(bar)>::value);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_typename_in_template_template_parameter
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<template<typename> typename X> struct D;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_fallthrough_nodiscard_maybe_unused_attributes
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int f1()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 42;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
[[nodiscard]] int f2()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
[[maybe_unused]] auto unused = f1();
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
switch (f1())
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
case 17:
|
|
rpm-build |
9243a4 |
f1();
|
|
rpm-build |
9243a4 |
[[fallthrough]];
|
|
rpm-build |
9243a4 |
case 42:
|
|
rpm-build |
9243a4 |
f1();
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
return f1();
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_extended_aggregate_initialization
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct base1
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int b1, b2 = 42;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct base2
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
base2() {
|
|
rpm-build |
9243a4 |
b3 = 42;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
int b3;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct derived : base1, base2
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int d;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
derived d1 {{1, 2}, {}, 4}; // full initialization
|
|
rpm-build |
9243a4 |
derived d2 {{}, {}, 4}; // value-initialized bases
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_general_range_based_for_loop
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct iter
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int i;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int& operator* ()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return i;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
const int& operator* () const
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return i;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
iter& operator++()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
++i;
|
|
rpm-build |
9243a4 |
return *this;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct sentinel
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int i;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
bool operator== (const iter& i, const sentinel& s)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return i.i == s.i;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
bool operator!= (const iter& i, const sentinel& s)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return !(i == s);
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct range
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
iter begin() const
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return {0};
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
sentinel end() const
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return {5};
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void f()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
range r {};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
for (auto i : r)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
[[maybe_unused]] auto v = i;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_lambda_capture_asterisk_this_by_value
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct t
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int i;
|
|
rpm-build |
9243a4 |
int foo()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return [*this]()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return i;
|
|
rpm-build |
9243a4 |
}();
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_enum_class_construction
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
enum class byte : unsigned char
|
|
rpm-build |
9243a4 |
{};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
byte foo {42};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_constexpr_if
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <bool cond>
|
|
rpm-build |
9243a4 |
int f ()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
if constexpr(cond)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 13;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
else
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 42;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_selection_statement_with_initializer
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int f()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 13;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int f2()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
if (auto i = f(); i > 0)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 3;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
switch (auto i = f(); i + 4)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
case 17:
|
|
rpm-build |
9243a4 |
return 2;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
default:
|
|
rpm-build |
9243a4 |
return 1;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#if !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
namespace test_template_argument_deduction_for_class_templates
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// TODO: test it with clang++ from git
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <typename T1, typename T2>
|
|
rpm-build |
9243a4 |
struct pair
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
pair (T1 p1, T2 p2)
|
|
rpm-build |
9243a4 |
: m1 {p1},
|
|
rpm-build |
9243a4 |
m2 {p2}
|
|
rpm-build |
9243a4 |
{}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
T1 m1;
|
|
rpm-build |
9243a4 |
T2 m2;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void f()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
[[maybe_unused]] auto p = pair{13, 42u};
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
#endif // !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_non_type_auto_template_parameters
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template <auto n>
|
|
rpm-build |
9243a4 |
struct B
|
|
rpm-build |
9243a4 |
{};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
B<5> b1;
|
|
rpm-build |
9243a4 |
B<'a'> b2;
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#if !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
namespace test_structured_bindings
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// TODO: test it with clang++ from git
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
int arr[2] = { 1, 2 };
|
|
rpm-build |
9243a4 |
std::pair<int, int> pr = { 1, 2 };
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
auto f1() -> int(&)[2]
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return arr;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
auto f2() -> std::pair<int, int>&
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return pr;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct S
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
int x1 : 2;
|
|
rpm-build |
9243a4 |
volatile double y1;
|
|
rpm-build |
9243a4 |
};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
S f3()
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return {};
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
auto [ x1, y1 ] = f1();
|
|
rpm-build |
9243a4 |
auto& [ xr1, yr1 ] = f1();
|
|
rpm-build |
9243a4 |
auto [ x2, y2 ] = f2();
|
|
rpm-build |
9243a4 |
auto& [ xr2, yr2 ] = f2();
|
|
rpm-build |
9243a4 |
const auto [ x3, y3 ] = f3();
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
#endif // !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#if !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
namespace test_exception_spec_type_system
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
// TODO: test it with clang++ from git
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
struct Good {};
|
|
rpm-build |
9243a4 |
struct Bad {};
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
void g1() noexcept;
|
|
rpm-build |
9243a4 |
void g2();
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename T>
|
|
rpm-build |
9243a4 |
Bad
|
|
rpm-build |
9243a4 |
f(T*, T*);
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<typename T1, typename T2>
|
|
rpm-build |
9243a4 |
Good
|
|
rpm-build |
9243a4 |
f(T1*, T2*);
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
#endif // !defined(REALLY_CLANG)
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
namespace test_inline_variables
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<class T> void f(T)
|
|
rpm-build |
9243a4 |
{}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<class T> inline T g(T)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return T{};
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<> inline void f<>(int)
|
|
rpm-build |
9243a4 |
{}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
template<> int g<>(int)
|
|
rpm-build |
9243a4 |
{
|
|
rpm-build |
9243a4 |
return 5;
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
}
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
} // namespace cxx17
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
#endif // __cplusplus <= 201402L
|
|
rpm-build |
9243a4 |
|
|
rpm-build |
9243a4 |
]])
|