# HG changeset patch
# User rubidium <rubidium@openttd.org>
# Date 2014-04-24 18:21:32
# Node ID b11f0e5075ec58f8ec8be8bd2a0b3ab108520f29
# Parent  0567743089333eec8bef50d732233af27211483c

(svn r26498) -Add: method for duplicating strings with similar behaviours as strecpy and strecat; give end pointer instead of a size

diff --git a/src/string.cpp b/src/string.cpp
--- a/src/string.cpp
+++ b/src/string.cpp
@@ -114,6 +114,21 @@ char *strecpy(char *dst, const char *src
 }
 
 /**
+ * Create a duplicate of the given string.
+ * @param s    The string to duplicate.
+ * @param last The last character that is safe to duplicate. If NULL, the whole string is duplicated.
+ * @note The maximum length of the resulting string might therefore be last - s + 1.
+ * @return The duplicate of the string.
+ */
+char *stredup(const char *s, const char *last)
+{
+	size_t len = last == NULL ? strlen(s) : ttd_strnlen(s, last - s + 1);
+	char *tmp = CallocT<char>(len + 1);
+	memcpy(tmp, s, len);
+	return tmp;
+}
+
+/**
  * Format, "printf", into a newly allocated string.
  * @param str The formatting string.
  * @return The formatted string. You must free this!
diff --git a/src/string_func.h b/src/string_func.h
--- a/src/string_func.h
+++ b/src/string_func.h
@@ -31,6 +31,7 @@
 
 char *strecat(char *dst, const char *src, const char *last);
 char *strecpy(char *dst, const char *src, const char *last);
+char *stredup(const char *src, const char *last = NULL);
 
 int CDECL seprintf(char *str, const char *last, const char *format, ...) WARN_FORMAT(3, 4);