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Fix user-defined literal detection for Intel C++ compiler

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This commit is contained in:
Dean Moldovan 2016-05-02 23:51:37 +02:00
parent b64d13a357
commit 3a04ebf14f
4 changed files with 33 additions and 2 deletions
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10
fmt/format.h
View File

@ -99,6 +99,12 @@ typedef __int64 intmax_t;
# define FMT_GCC_EXTENSION
#endif
#if defined(__INTEL_COMPILER)
# define FMT_ICC_VERSION __INTEL_COMPILER
#elif defined(__ICL)
# define FMT_ICC_VERSION __ICL
#endif
#if defined(__clang__) && !defined(__INTEL_COMPILER)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wdocumentation"
@ -212,10 +218,12 @@ typedef __int64 intmax_t;
// All compilers which support UDLs also support variadic templates. This
// makes the fmt::literals implementation easier. However, an explicit check
// for variadic templates is added here just in case.
// For Intel's compiler both it and the system gcc/msc must support UDLs.
# define FMT_USE_USER_DEFINED_LITERALS \
FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
(FMT_HAS_FEATURE(cxx_user_literals) || \
(FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900)
(FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900) && \
(!defined(FMT_ICC_VERSION) || FMT_ICC_VERSION >= 1500)
#endif
#ifndef FMT_ASSERT

7
support/cmake/cxx11.cmake
View File

@ -63,4 +63,11 @@ check_cxx_source_compiles("
class C { void operator=(const C&); };
int main() { static_assert(!std::is_copy_assignable<C>::value, \"\"); }"
SUPPORTS_TYPE_TRAITS)
# Check if user-defined literals are available
check_cxx_source_compiles("
void operator\"\" _udl(long double);
int main() {}"
SUPPORTS_USER_DEFINED_LITERALS)
set(CMAKE_REQUIRED_FLAGS )

6
test/CMakeLists.txt
View File

@ -123,7 +123,11 @@ if (FMT_PEDANTIC)
"${CMAKE_CURRENT_SOURCE_DIR}/compile-test"
"${CMAKE_CURRENT_BINARY_DIR}/compile-test"
--build-generator ${CMAKE_GENERATOR}
--build-makeprogram ${CMAKE_MAKE_PROGRAM})
--build-makeprogram ${CMAKE_MAKE_PROGRAM}
--build-options
"-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
"-DCPP11_FLAG=${CPP11_FLAG}"
"-DSUPPORTS_USER_DEFINED_LITERALS=${SUPPORTS_USER_DEFINED_LITERALS}")
# test if the targets are findable from the build directory
add_test(find-package-test ${CMAKE_CTEST_COMMAND}

12
test/compile-test/CMakeLists.txt
View File

@ -4,6 +4,7 @@ cmake_minimum_required(VERSION 2.8)
include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR}/../..)
set(CMAKE_REQUIRED_FLAGS ${CPP11_FLAG})
function (generate_source result fragment)
set(${result} "
@ -57,3 +58,14 @@ expect_compile_error("fmt::MemoryWriter() << fmt::pad(42, 5, L' ');")
expect_compile_error("fmt::format(\"{}\", L'a';")
expect_compile_error("FMT_STATIC_ASSERT(0 > 1, \"oops\");")
# Make sure that compiler features detected in the header
# match the features detected in CMake.
if (SUPPORTS_USER_DEFINED_LITERALS)
set(supports_udl 1)
else ()
set(supports_udl 0)
endif ()
expect_compile("#if FMT_USE_USER_DEFINED_LITERALS != ${supports_udl}
# error
#endif")