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-rw-r--r--ext/standard/php_math.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/ext/standard/php_math.h b/ext/standard/php_math.h
index 2f26e1d681..32214ae83b 100644
--- a/ext/standard/php_math.h
+++ b/ext/standard/php_math.h
@@ -149,4 +149,21 @@ PHP_FUNCTION(atanh);
#define M_SQRT3 1.73205080756887729352 /* sqrt(3) */
#endif
+/* Define rounding modes (all are round-to-nearest) */
+#ifndef PHP_ROUND_HALF_UP
+#define PHP_ROUND_HALF_UP 0x01 /* Arithmetic rounding, up == away from zero */
+#endif
+
+#ifndef PHP_ROUND_HALF_DOWN
+#define PHP_ROUND_HALF_DOWN 0x02 /* Down == towards zero */
+#endif
+
+#ifndef PHP_ROUND_HALF_EVEN
+#define PHP_ROUND_HALF_EVEN 0x03 /* Banker's rounding */
+#endif
+
+#ifndef PHP_ROUND_HALF_ODD
+#define PHP_ROUND_HALF_ODD 0x04
+#endif
+
#endif /* PHP_MATH_H */