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-rw-r--r--src/math/finite.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/math/finite.c b/src/math/finite.c
new file mode 100644
index 00000000..25a0575f
--- /dev/null
+++ b/src/math/finite.c
@@ -0,0 +1,7 @@
+#define _GNU_SOURCE
+#include <math.h>
+
+int finite(double x)
+{
+	return isfinite(x);
+}