added a function to count the bytes in a string if the number of UTF8 chars is already known

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12661 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-13 17:30:59 +00:00 · 2005-05-13 17:30:59 +00:00 · 1db49f8a7a
commit 1db49f8a7a
parent 94e9712aa7
1 changed files with 13 additions and 0 deletions
--- a/headers/private/interface/moreUTF8.h
+++ b/headers/private/interface/moreUTF8.h
@ -24,6 +24,19 @@ UTF8NextCharLen(const char *text)
 	return ptr - text;
 }

+static inline uint32
+UTF8CountBytes(const char *text, uint32 numChars)
+{
+	const char *ptr = text;
+
+	while (numChars) {
+		ptr += UTF8NextCharLen(ptr);
+		numChars--;
+	}
+
+	return ptr - text;
+}
+

 static inline uint32
 UTF8PreviousCharLen(const char *text, const char *limit)