Parser: Bessel Function (J_n) (#1854)

* Parser: Bessel Function (J_n)

Add the Bessel Function of the First Kind (J_n) to the parser.

* Parser: regenerate

* Parser: No jn for DPC++ (yet)

* Parser: no jnf for Apple

At least on AppleClang and also seen in flang source-code, we
just call the double variant of `jn` instead of using a specialized
call to `jnf`.

This might be less efficient than needed with Intel on Apple, but
I don't have a system to test this on at the moment and this is thus
a save bet for compile stability.

Co-authored-by: Tools <warpx@lbl.gov>

1 files changed, 3 insertions, 0 deletions

diff --git a/Source/Parser/wp_parser_y.cpp b/Source/Parser/wp_parser_y.cpp
index 978352201..1942f9c3e 100644
--- a/Source/Parser/wp_parser_y.cpp
+++ b/Source/Parser/wp_parser_y.cpp
@@ -769,6 +769,9 @@ wp_ast_print_f2 (struct wp_f2* f2)
     case WP_HEAVISIDE:
         std::printf("HEAVISIDE\n");
         break;
+    case WP_JN:
+        std::printf("JN\n");
+        break;
     case WP_MIN:
         std::printf("MIN\n");
         break;