[Issue 12076] New: [REG 2.065 HEAD] ctRegex range violation

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=12076

           Summary: [REG 2.065 HEAD] ctRegex range violation
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: regression
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: mk at krej.cz


--- Comment #0 from Martin Krejcirik <mk at krej.cz> 2014-02-05 00:42:38 CET ---
I get range violation in ctRegex after this commit:
https://github.com/D-Programming-Language/phobos/commit/f1eadb913608ad1e1acd800e6c36b2b50b2a9f12

import std.stdio, std.regex;

void main()
{
        auto RE = ctRegex!(r"(?<!x\w+)\s(\w+)");
        string s = "one two";

        auto m = matchFirst(s, RE);
}

---------------------

core.exception.RangeError at std.regex(5982): Range violation
----------------
./regexbug(_d_array_bounds+0x16) [0x80ea846]
./regexbug() [0x80f2402]
./regexbug(@trusted bool std.regex.ctRegexImpl!("(?<!x\w+)\s(\w+)",
[]).func(ref
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char).BacktrackingMatcher).matcher_0(ref
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char,
std.regex.Input!(char).Input.BackLooper).BacktrackingMatcher)+0x157)
[0x80d1d37]
./regexbug(@trusted bool
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char,
std.regex.Input!(char).Input.BackLooper).BacktrackingMatcher.matchImpl()+0x39)
[0x80e4979]
./regexbug(@trusted bool std.regex.ctRegexImpl!("(?<!x\w+)\s(\w+)",
[]).func(ref
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char).BacktrackingMatcher)+0x1c1)
[0x80d18f1]
./regexbug(@trusted bool
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char).BacktrackingMatcher.matchImpl()+0x39)
[0x80e30b1]
./regexbug(@trusted bool
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char).BacktrackingMatcher.matchFinalize()+0x42)
[0x80e2e6a]
./regexbug(@trusted bool
std.regex.BacktrackingMatcher!(true).BacktrackingMatcher!(char).BacktrackingMatcher.match(std.regex.Group!(uint).Group[])+0xdd)
[0x80e2fcd]
./regexbug(@trusted std.regex.Captures!(immutable(char)[], uint).Captures
std.regex.__T9matchOnceS613std5regex28__T19BacktrackingMatcherVb1Z19BacktrackingMatcherTS3std5regex19__T11StaticRegexTaZ11StaticRegexTAyaZ.matchOnce(immutable(char)[],
std.regex.StaticRegex!(char).StaticRegex)+0xe0) [0x80e37e8]
./regexbug(@safe std.regex.Captures!(immutable(char)[], uint).Captures
std.regex.matchFirst!(immutable(char)[],
std.regex.StaticRegex!(char).StaticRegex).matchFirst(immutable(char)[],
std.regex.StaticRegex!(char).StaticRegex)+0x29) [0x80e36f1]
./regexbug(_Dmain+0x26002) [0x80d1722]
./regexbug(void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll().void __lambda1()+0x10) [0x80ec168]
./regexbug(void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate())+0x18) [0x80ec0e0]
./regexbug(void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll()+0x27) [0x80ec12f]
./regexbug(void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate())+0x18) [0x80ec0e0]
./regexbug(_d_run_main+0x117) [0x80ec077]
./regexbug(main+0x14) [0x80e7fdc]
/lib/i686/cmov/libc.so.6(__libc_start_main+0xe6) [0xeb5f2ca6]
./regexbug() [0x80ab681]

---------------------------

Normal regex() works.

DMD32 D Compiler v2.065-devel-e493324
Linux

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