diff options
Diffstat (limited to 'py/modmath.c')
| -rw-r--r-- | py/modmath.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/py/modmath.c b/py/modmath.c index b312eeb3d..b7948f39e 100644 --- a/py/modmath.c +++ b/py/modmath.c @@ -98,7 +98,19 @@ mp_float_t MICROPY_FLOAT_C_FUN(log2)(mp_float_t x) { // sqrt(x): returns the square root of x MATH_FUN_1(sqrt, sqrt) // pow(x, y): returns x to the power of y +#if MICROPY_PY_MATH_POW_FIX_NAN +mp_float_t pow_func(mp_float_t x, mp_float_t y) { + // pow(base, 0) returns 1 for any base, even when base is NaN + // pow(+1, exponent) returns 1 for any exponent, even when exponent is NaN + if (x == MICROPY_FLOAT_CONST(1.0) || y == MICROPY_FLOAT_CONST(0.0)) { + return MICROPY_FLOAT_CONST(1.0); + } + return MICROPY_FLOAT_C_FUN(pow)(x, y); +} +MATH_FUN_2(pow, pow_func) +#else MATH_FUN_2(pow, pow) +#endif // exp(x) MATH_FUN_1(exp, exp) #if MICROPY_PY_MATH_SPECIAL_FUNCTIONS |