src/hb-private.hh | 13 +++++++++++++
1 file changed, 13 insertions(+)
New commits:
commit 19256bef9d264f96187261929992b96e61fa43fd
Author: Chun-wei Fan <fanchun...@src.gnome.org>
Date: Mon Mar 12 13:33:03 2018 +0800
hb-private.hh: Add fallback implementation for round()
For pre-C99 compilers that do not support round(), we need to have a
simplistic implementation for it, when it is not detected during build
configuration, either via CMake or autotools, by using floor() and
ceil(), which are provided in the pre-C99 compilers.
Please see discussion at commit 86a0ac2 for more details for re-adding
this patch.
diff --git a/src/hb-private.hh b/src/hb-private.hh
index daa496e9..62a103cf 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -1070,4 +1070,17 @@ struct hb_string_t
};
+/* fallback for round() */
+#if !defined (HAVE_ROUND) && !defined (HAVE_DECL_ROUND)
+static inline double
+round (double x)
+{
+ if (x >= 0)
+ return floor (x + 0.5);
+ else
+ return ceil (x - 0.5);
+}
+#endif
+
+
#endif /* HB_PRIVATE_HH */
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