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-rw-r--r--src/lib/math/fp.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/math/fp.h b/src/lib/math/fp.h
index 6f07152e92..a73789c945 100644
--- a/src/lib/math/fp.h
+++ b/src/lib/math/fp.h
@@ -19,5 +19,6 @@ double tor_mathlog(double d) ATTR_CONST;
long tor_lround(double d) ATTR_CONST;
int64_t tor_llround(double d) ATTR_CONST;
int64_t clamp_double_to_int64(double number);
+int tor_isinf(double x);
-#endif
+#endif /* !defined(TOR_FP_H) */