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-rw-r--r--missing/cbrt.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/missing/cbrt.c b/missing/cbrt.c
new file mode 100644
index 0000000000..54db2703a0
--- /dev/null
+++ b/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);
+}
+