diff options
| author | stijn <stijn@ignitron.net> | 2020-09-08 15:22:34 +0200 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2020-09-11 10:04:57 +1000 |
| commit | 2e54d9d146b34d7ad00e4394c9767f4319244cdf (patch) | |
| tree | b6d56e3d53b9fef5d5898964d7bdd086e23016d5 /py/objfloat.c | |
| parent | 8d5a40c86e384bf3cddb2f687374e0bb1ae6df7d (diff) | |
py: Fix handling of NaN in certain pow implementations.
Adds a new compile-time option MICROPY_PY_MATH_POW_FIX_NAN for use with
toolchains that don't handle pow-of-NaN correctly.
Diffstat (limited to 'py/objfloat.c')
| -rw-r--r-- | py/objfloat.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/py/objfloat.c b/py/objfloat.c index f1e401ecc..451609492 100644 --- a/py/objfloat.c +++ b/py/objfloat.c @@ -300,6 +300,12 @@ mp_obj_t mp_obj_float_binary_op(mp_binary_op_t op, mp_float_t lhs_val, mp_obj_t mp_raise_ValueError(MP_ERROR_TEXT("complex values not supported")); #endif } + #if MICROPY_PY_MATH_POW_FIX_NAN // Also see modmath.c. + if (lhs_val == MICROPY_FLOAT_CONST(1.0) || rhs_val == MICROPY_FLOAT_CONST(0.0)) { + lhs_val = MICROPY_FLOAT_CONST(1.0); + break; + } + #endif lhs_val = MICROPY_FLOAT_C_FUN(pow)(lhs_val, rhs_val); break; case MP_BINARY_OP_DIVMOD: { |