Changeset b2906c0 in mainline for uspace/lib/c/generic/str.c

Timestamp:

2017-07-11T18:44:04Z (8 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f3504c1

Parents:

9bf4488

Message:

One function to compute the number of code units in a UTF-16 null-terminated string.

File:

• uspace/lib/c/generic/str.c (modified) (1 diff)

uspace/lib/c/generic/str.c

@@ -995 +995 @@
         dest[idx] = '\0';
         return rc;
+}
+
+/** Get size of UTF-16 string.
+ *
+ * Get the number of words which are used by the UTF-16 string @a ustr
+ * (excluding the NULL-terminator).
+ *
+ * @param ustr UTF-16 string to consider.
+ *
+ * @return Number of words used by the UTF-16 string
+ *
+ */
+size_t utf16_wsize(const uint16_t *ustr)
+{
+        size_t wsize = 0;
+
+        while (*ustr++ != 0)
+                wsize++;
+
+        return wsize;
 }