diff options
Diffstat (limited to 'soft-fp/soft-fp.h')
| -rw-r--r-- | soft-fp/soft-fp.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/soft-fp/soft-fp.h b/soft-fp/soft-fp.h index 8a22a11e20..d6c4b683b8 100644 --- a/soft-fp/soft-fp.h +++ b/soft-fp/soft-fp.h @@ -142,6 +142,30 @@ #define FP_TRAPPING_EXCEPTIONS 0 #endif +/* A file using soft-fp may define FP_NO_EXCEPTIONS before including + soft-fp.h to indicate that, although a macro used there could raise + exceptions, or do rounding and potentially thereby raise + exceptions, for some arguments, for the particular arguments used + in that file no exceptions or rounding can occur. Such a file + should not itself use macros relating to handling exceptions and + rounding modes; this is only for indirect uses (in particular, in + _FP_FROM_INT and the macros it calls). */ +#ifdef FP_NO_EXCEPTIONS + +#undef FP_SET_EXCEPTION +#define FP_SET_EXCEPTION(ex) do {} while (0) + +#undef FP_CUR_EXCEPTIONS +#define FP_CUR_EXCEPTIONS 0 + +#undef FP_TRAPPING_EXCEPTIONS +#define FP_TRAPPING_EXCEPTIONS 0 + +#undef FP_ROUNDMODE +#define FP_ROUNDMODE FP_RND_ZERO + +#endif + #define _FP_ROUND_NEAREST(wc, X) \ do { \ if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \ |