Implement C23 tanpi

C23 adds various <math.h> function families originally defined in TS
18661-4.  Add the tanpi functions (tan(pi*x)).

Tested for x86_64 and x86, and with build-many-glibcs.py.

1 files changed, 2 insertions, 0 deletions

diff --git a/math/Versions b/math/Versions
index b14ea92392..baad0a8f93 100644
--- a/math/Versions
+++ b/math/Versions
@@ -657,8 +657,10 @@ libm {
     # Functions not involving _Float64x or _Float128, for all configurations.
     cospi; cospif; cospil; cospif32; cospif64; cospif32x;
     sinpi; sinpif; sinpil; sinpif32; sinpif64; sinpif32x;
+    tanpi; tanpif; tanpil; tanpif32; tanpif64; tanpif32x;
     # Functions involving _Float64x or _Float128, for some configurations.
     cospif64x; cospif128;
     sinpif64x; sinpif128;
+    tanpif64x; tanpif128;
   }
 }