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-rw-r--r--src/lib/math/fp.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/lib/math/fp.c b/src/lib/math/fp.c
index eafad358c3..616e4f15c0 100644
--- a/src/lib/math/fp.c
+++ b/src/lib/math/fp.c
@@ -121,3 +121,23 @@ ENABLE_GCC_WARNING(double-promotion)
ENABLE_GCC_WARNING(float-conversion)
#endif
}
+
+/* isinf() wrapper for tor */
+int
+tor_isinf(double x)
+{
+ /* Same as above, work around the "double promotion" warnings */
+#ifdef PROBLEMATIC_FLOAT_CONVERSION_WARNING
+DISABLE_GCC_WARNING(float-conversion)
+#endif
+#ifdef PROBLEMATIC_DOUBLE_PROMOTION_WARNING
+DISABLE_GCC_WARNING(double-promotion)
+#endif
+ return isinf(x);
+#ifdef PROBLEMATIC_DOUBLE_PROMOTION_WARNING
+ENABLE_GCC_WARNING(double-promotion)
+#endif
+#ifdef PROBLEMATIC_FLOAT_CONVERSION_WARNING
+ENABLE_GCC_WARNING(float-conversion)
+#endif
+}