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-rw-r--r--src/math/M_LN10.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/math/M_LN10.h b/src/math/M_LN10.h
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+++ b/src/math/M_LN10.h
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+#include <math.h>
+#define M_LN10 // log_e 10
+/*
+XOPEN(4)
+*/