Changeset 7afb4a5 in mainline for uspace/lib/libc/generic/string.c

Timestamp:

2009-04-09T21:28:50Z (16 years ago)

Author:

Jiri Svoboda <jirik.svoboda@…>

Branches:

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

Children:

095003a8

Parents:

92fd52d7

Message:

Nuke strchr() and strrchr().

File:

• uspace/lib/libc/generic/string.c (modified) (4 diffs)

uspace/lib/libc/generic/string.c

@@ -536 +536 @@
  *
  * @return Pointer to character in @a str or NULL if not found.
- *
  */
 const char *str_chr(const char *str, wchar_t ch)
@@ -549 +548 @@
         
         return NULL;
+}
+
+/** Find last occurence of character in string.
+ *
+ * @param str String to search.
+ * @param ch  Character to look for.
+ *
+ * @return Pointer to character in @a str or NULL if not found.
+ */
+const char *str_rchr(const char *str, wchar_t ch)
+{
+        wchar_t acc;
+        size_t off = 0;
+        char *res;
+
+        res = NULL;
+        while ((acc = str_decode(str, &off, STR_NO_LIMIT)) != 0) {
+                if (acc == ch)
+                        res = (str + off);
+        }
+
+        return res;
 }
 
@@ -626 +647 @@
         
         return (tolower(a[c]) - tolower(b[c]));
-}
-
-/** Return pointer to the first occurence of character c in string.
- *
- * @param str           Scanned string.
- * @param c             Searched character (taken as one byte).
- * @return              Pointer to the matched character or NULL if it is not
- *                      found in given string.
- */
-char *strchr(const char *str, int c)
-{
-        while (*str != '\0') {
-                if (*str == (char) c)
-                        return (char *) str;
-                str++;
-        }
-
-        return NULL;
-}
-
-/** Return pointer to the last occurence of character c in string.
- *
- * @param str           Scanned string.
- * @param c             Searched character (taken as one byte).
- * @return              Pointer to the matched character or NULL if it is not
- *                      found in given string.
- */
-char *strrchr(const char *str, int c)
-{
-        char *retval = NULL;
-
-        while (*str != '\0') {
-                if (*str == (char) c)
-                        retval = (char *) str;
-                str++;
-        }
-
-        return (char *) retval;
 }
 
@@ -870 +853 @@
 
         /* Skip over leading delimiters. */
-        while (*s && (strchr(delim, *s) != NULL)) ++s;
+        while (*s && (str_chr(delim, *s) != NULL)) ++s;
         start = s;
 
         /* Skip over token characters. */
-        while (*s && (strchr(delim, *s) == NULL)) ++s;
+        while (*s && (str_chr(delim, *s) == NULL)) ++s;
         end = s;
         *next = (*s ? s + 1 : s);