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54 lines
1.8 KiB
CMake
54 lines
1.8 KiB
CMake
# This file is part of snapcast
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# Copyright (C) 2014-2020 Johannes Pohl
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#[=======================================================================[.rst:
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CheckCXX11StringSupport
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----------------------
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Check if the C++ compiler supports std::to_string, std::stoi, ...
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See also: https://stackoverflow.com/questions/17950814/how-to-use-stdstoul-and-stdstoull-in-android/18124627#18124627
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.. command:: CHECK_CXX11_STRING_SUPPORT
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::
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CHECK_CXX11_STRING_SUPPORT(resultVar)
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Checks support for std::to_string, std::stoul, std::stoi, std::stod.
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The result will be stored in the internal cache variable specified
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by ``resultVar``, with a boolean true value for success and boolean false for
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failure.
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#]=======================================================================]
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include(CheckCXXSourceCompiles)
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macro (CHECK_CXX11_STRING_SUPPORT _RESULT)
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set(CMAKE_REQUIRED_DEFINITIONS -std=c++0x)
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set(_CHECK_CXX11_STRING_SUPPORT_SOURCE_CODE "
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#include <string>
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int main()
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{
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std::to_string(1);
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std::stoul(\"1\");
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std::stoi(\"1\");
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std::stod(\"1\");
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return 0;
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}
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")
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CHECK_CXX_SOURCE_COMPILES("${_CHECK_CXX11_STRING_SUPPORT_SOURCE_CODE}" ${_RESULT})
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endmacro ()
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