[Issue 1233] New: std.string.ifind(char[] s, char[] sub) fails on certain non ascii strings

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1233

           Summary: std.string.ifind(char[] s, char[] sub) fails on certain
                    non ascii strings
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: patch
          Severity: trivial
          Priority: P2
         Component: Phobos
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: d at chqrlie.org


import std.string;
int main(char[][] args) {
    printf("ifind(\"é\", \"é\") -> %d\n", ifind("é", "é"));
    return 0;
}

produces incorrect output : 

ifind("é", "é") -> -1

bug is in src/phobos/std/string.d, line 613:

-          size_t imax = s.length - sublength;
+          size_t imax = s.length - sublength + 1;

This will fix the bug, but the implementation will remain quite inefficient.


--