jcs
/subtext
/amendments
/161
util: Add macros for combining char bytes to long/short
This should be easy but doing so from signed chars causes problems,
so casting to unsigned char is needed, but then each needs to be cast
to a long before shifting.
jcs made amendment 161 about 1 year ago
--- util.h Tue Jun 21 14:29:38 2022
+++ util.h Wed Jun 22 17:16:04 2022
@@ -41,6 +41,15 @@
} \
}
+#define CHARS_TO_LONG(a,b,c,d) (unsigned long)(\
+ ((unsigned long)((unsigned char)(a)) << 24) | \
+ ((unsigned long)((unsigned char)(b)) << 16) | \
+ ((unsigned long)((unsigned char)(c)) << 8) | \
+ (unsigned long)((unsigned char)(d)) )
+#define CHARS_TO_SHORT(a,b) (unsigned short)(\
+ ((unsigned short)((unsigned char)(a)) << 8) | \
+ (unsigned short)((unsigned char)(b)) )
+
#define SCROLLBAR_WIDTH 16
/* GetMBarHeight() is not very useful */