1 files changed, 25 insertions, 0 deletions
diff --git a/src/approx-equal.h b/src/approx-equal.h
new file mode 100644
index 000000000..3f5ebf109
--- /dev/null
+++ b/src/approx-equal.h
@@ -0,0 +1,25 @@
+#ifndef __APROX_EQUAL_H__
+#define __APROX_EQUAL_H__
+
+#include <cmath>
+
+inline bool approx_equal(double const a, double const b)
+{
+    return ( (a == b)
+             || ( fabs( a - b ) < 1e-2 )
+             || ( fabs( a / b - 1.0 ) < 1e-2 ) );
+}
+
+
+#endif /* !__APROX_EQUAL_H__ */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :