C, add fract and accum

Author: jakobandersen

sphinx/domains/c.py

@@ -111,7 +111,7 @@
     |__float80|_Float64x|__float128|_Float128|__ibm128
     |__fp16
     # Fixed-point, extension
-    |(_Sat\s+)?((signed|unsigned)\s+)?((short|long|long\s+long)\s+)?(_Fract|_Accum)
+    |(_Sat\s+)?((signed|unsigned)\s+)?((short|long|long\s+long)\s+)?(_Fract|fract|_Accum|accum)
     # Integer types that could be prefixes of the previous ones
     # ---------------------------------------------------------
     |((signed|unsigned)\s+)?(short|long\s+long|long)

tests/test_domain_c.py

@@ -318,7 +318,7 @@ def signed(t):
         # -----------------------------
         # https://gcc.gnu.org/onlinedocs/gcc/Fixed-Point.html#Fixed-Point
         for sat in ('', '_Sat '):
-            for t in ('_Fract', '_Accum'):
+            for t in ('_Fract', 'fract', '_Accum', 'accum'):
                 for size in ('short ', '', 'long ', 'long long '):
                     for tt in signed(size + t):
                         yield sat + tt