cmake HAVE_STD_STRING_VIEW examples

shogun-toolbox/shogun CMakeLists.txt :91

CHECK_CXX_SOURCE_COMPILES("
#include <string>
#include <string_view>

int main()
{
  char array[3] = {'B', 'a', 'r'};
  std::string_view array_v(array, std::size(array));
  return 0;
}
" HAVE_STD_STRING_VIEW)