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diff --git a/src/math/HUGE_VAL.h b/src/math/HUGE_VAL.h
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+#define HUGE_VAL (1.0) /* TODO: massive positive double */
+
+/** a huge value **/
+
+/***
+is a large positive TYPE(double), not necessarily representable as a
+TYPE(float). It is used as a sentinel value by several functions in the
+standard library.
+***/
+/*
+STDC(1)
+*/