Changes to m4/src/m4.h,v [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      06/06/15 21:51:37

Index: src/m4.h
===================================================================
RCS file: /sources/m4/m4/src/m4.h,v
retrieving revision 1.1.1.1.2.8
retrieving revision 1.1.1.1.2.9
diff -u -b -r1.1.1.1.2.8 -r1.1.1.1.2.9
--- src/m4.h    6 Jun 2006 13:20:57 -0000       1.1.1.1.2.8
+++ src/m4.h    15 Jun 2006 21:51:37 -0000      1.1.1.1.2.9
@@ -480,3 +480,8 @@
 # define DEBUG_SYM
 # define DEBUG_INCL
 #endif
+
+/* Convert a possibly-signed character to an unsigned character.  This is
+   a bit safer than casting to unsigned char, since it catches some type
+   errors that the cast doesn't.  */
+static inline unsigned char to_uchar (char ch) { return ch; }