git.m6w6.name Git - m6w6/libmemcached/blob - CMake/CheckCpp17Parallelism.cmake

   1 configure_define(HAVE_CPP17_PARALLELISM)
   2
   3 #
   4 # see CheckTbb.cmake on change
   5 #
   6
   7 check_cxx_source_compiles("
   8                 #include <vector>
   9                 #include <algorithm>
  10                 #include <execution>
  11                 int main() {
  12                     std::vector<char> a = {1,2,3};
  13                     std::all_of(std::execution::par, a.begin(), a.end(), [](char i) {
  14                         return i>0;
  15                     });
  16                 }
  17                 "
  18         HAVE_CPP17_PARALLELISM
  19         )
  20
  21 if(HAVE_CPP17_PARALLELISM)
  22     add_library(cpp17::paralleslism INTERFACE IMPORTED)
  23     # noting to be done
  24 else()
  25     include(CheckTbb)
  26     set(HAVE_CPP17_PARALLELISM "${HAVE_TBB}")
  27     if(HAVE_TBB)
  28         add_library(cpp17::parallelism ALIAS "${LIBTBB}")
  29     endif()
  30 endif()