| # Ceres Solver - A fast non-linear least squares minimizer | |
| # Copyright 2017 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) | |
| # Microsoft deprecated the POSIX Bessel functions: j[0,1,n]() in favour | |
| # of _j[0,1,n](), it appears since at least MSVC 2005 [1]. This function | |
| # checks if the underscore prefixed versions of the Bessel functions are | |
| # defined, and sets ${HAVE_UNDERSCORE_PREFIXED_BESSEL_FUNCTIONS_VAR} to | |
| # TRUE if they do. | |
| # | |
| # [1] https://msdn.microsoft.com/en-us/library/ms235384(v=vs.100).aspx | |
| function(check_if_underscore_prefixed_bessel_functions_exist | |
| HAVE_UNDERSCORE_PREFIXED_BESSEL_FUNCTIONS_VAR) | |
| include(CheckCXXSourceCompiles) | |
| check_cxx_source_compiles( | |
| "#include <math.h> | |
| int main(int argc, char * argv[]) { | |
| double result; | |
| result = _j0(1.2345); | |
| result = _j1(1.2345); | |
| result = _jn(2, 1.2345); | |
| return 0; | |
| }" | |
| HAVE_UNDERSCORE_PREFIXED_BESSEL_FUNCTIONS) | |
| set(${HAVE_UNDERSCORE_PREFIXED_BESSEL_FUNCTIONS_VAR} | |
| ${HAVE_UNDERSCORE_PREFIXED_BESSEL_FUNCTIONS} | |
| PARENT_SCOPE) | |
| endfunction() |