libstdc++-v3/testsuite/26_numerics/midpoint/version.cc

   1 // { dg-options "-std=gnu++2a" }
   2 // { dg-do preprocess { target c++2a } }
   3 // { dg-require-effective-target hosted }
   4
   5 #include <version>
   6
   7 #ifndef __cpp_lib_interpolate
   8 # error "Feature-test macro for midpoint and lerp missing in <version>"
   9 #elif __cpp_lib_interpolate != 201902L
  10 # error "Feature-test macro for midpoint and lerp has wrong value in <version>"
  11 #endif