diff options
| -rw-r--r-- | Libraries/LibM/math.cpp | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/Libraries/LibM/math.cpp b/Libraries/LibM/math.cpp index 24810ffcd7..3c7f4bbaf9 100644 --- a/Libraries/LibM/math.cpp +++ b/Libraries/LibM/math.cpp @@ -64,11 +64,11 @@ double pow(double x, double y) return exp(y * log(x)); } -double ldexp(double, int exp) +double ldexp(double x, int exp) { - (void)exp; - ASSERT_NOT_REACHED(); - return 0; + // FIXME: Please fix me. I am naive. + double val = pow(2, exp); + return x * val; } double tanh(double x) @@ -290,6 +290,16 @@ float roundf(float value) return (float)(int)(value - 0.5f); } +double floor(double value) +{ + return (int)value; +} + +double rint(double value) +{ + return (int)roundf(value); +} + float ceilf(float value) { // FIXME: Please fix me. I am naive. @@ -300,6 +310,16 @@ float ceilf(float value) return as_int + 1; } +double ceil(double value) +{ + // FIXME: Please fix me. I am naive. + int as_int = (int)value; + if (value == (double)as_int) { + return (double)as_int; + } + return as_int + 1; +} + double modf(double x, double* intpart) { *intpart = (double)((int)(x)); |