| # Ceres Solver - A fast non-linear least squares minimizer |
| # Copyright 2015 Google Inc. All rights reserved. |
| # http://ceres-solver.org/ |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # |
| # * Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above copyright notice, |
| # this list of conditions and the following disclaimer in the documentation |
| # and/or other materials provided with the distribution. |
| # * Neither the name of Google Inc. nor the names of its contributors may be |
| # used to endorse or promote products derived from this software without |
| # specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| # Author: alexs.mac@gmail.com (Alex Stewart) |
| # |
| |
| # FindCXX11MathFunctions.cmake - Find C++11 math functions. |
| # |
| # This module defines the following variables: |
| # |
| # CXX11_MATH_FUNCTIONS_FOUND: TRUE if C++11 math functions are found. |
| |
| macro(find_cxx11_math_functions) |
| # To support CXX11 option, clear the results of all check_xxx() functions |
| # s/t we always perform the checks each time, otherwise CMake fails to |
| # detect that the tests should be performed again after CXX11 is toggled. |
| unset(CXX11_MATH_FUNCTIONS_FOUND CACHE) |
| |
| # Verify that all C++11-specific math functions used by jet.h exist. |
| check_cxx_source_compiles("#include <cmath> |
| #include <cstddef> |
| static constexpr size_t kMaxAlignBytes = alignof(std::max_align_t); |
| int main() { |
| std::cbrt(1.0); |
| std::exp2(1.0); |
| std::log2(1.0); |
| std::hypot(1.0, 1.0); |
| std::fmax(1.0, 1.0); |
| std::fmin(1.0, 1.0); |
| return 0; |
| }" |
| CXX11_MATH_FUNCTIONS_FOUND) |
| endmacro() |