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authoryugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-08-25 15:02:05 +0000
committeryugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-08-25 15:02:05 +0000
commit0dc342de848a642ecce8db697b8fecd83a63e117 (patch)
tree2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/missing/cbrt.c
parentef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff)
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/missing/cbrt.c')
-rw-r--r--trunk/missing/cbrt.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/trunk/missing/cbrt.c b/trunk/missing/cbrt.c
new file mode 100644
index 0000000000..54db2703a0
--- /dev/null
+++ b/trunk/missing/cbrt.c
@@ -0,0 +1,10 @@
+#include <math.h>
+
+double cbrt(double x)
+{
+ if (x < 0)
+ return -pow(-x, 1/3.0);
+ else
+ return pow(x, 1/3.0);
+}
+