From 2c7cee8a1a7886691f5103a4319fca411408b500 Mon Sep 17 00:00:00 2001 From: Paolo Bosetti Date: Mon, 4 Jun 2012 15:56:51 -0700 Subject: Added Math.sqrt() that was missing in math.c, and added relevant test case --- src/math.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'src/math.c') diff --git a/src/math.c b/src/math.c index b0d911573..eff2edcad 100644 --- a/src/math.c +++ b/src/math.c @@ -463,6 +463,25 @@ math_log10(mrb_state *mrb, mrb_value obj) return mrb_float_value(x); } +/* + * call-seq: + * Math.sqrt(numeric) -> float + * + * Returns the square root of numeric. + * + */ +static mrb_value +math_sqrt(mrb_state *mrb, mrb_value obj) +{ + mrb_float x; + + mrb_get_args(mrb, "f", &x); + x = sqrt(x); + + return mrb_float_value(x); +} + + /* * call-seq: * Math.cbrt(numeric) -> float @@ -646,6 +665,7 @@ mrb_init_math(mrb_state *mrb) mrb_define_module_function(mrb, mrb_math, "log", math_log, -1); mrb_define_module_function(mrb, mrb_math, "log2", math_log2, 1); mrb_define_module_function(mrb, mrb_math, "log10", math_log10, 1); + mrb_define_module_function(mrb, mrb_math, "sqrt", math_sqrt, 1); mrb_define_module_function(mrb, mrb_math, "cbrt", math_cbrt, 1); mrb_define_module_function(mrb, mrb_math, "frexp", math_frexp, 1); -- cgit v1.2.3