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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (STDCXX-121) std::search_n() assumes Size can be incremented
Date Tue, 28 Feb 2006 01:34:55 GMT
     [ http://issues.apache.org/jira/browse/STDCXX-121?page=all ]
     
Martin Sebor resolved STDCXX-121:
---------------------------------

    Fix Version: 4.1.4
     Resolution: Fixed

Fixed with the referenced change.

> std::search_n() assumes Size can be incremented
> -----------------------------------------------
>
>          Key: STDCXX-121
>          URL: http://issues.apache.org/jira/browse/STDCXX-121
>      Project: C++ Standard Library
>         Type: Bug
>   Components: 25. Algorithms
>     Versions: 4.1.2, 4.1.3
>  Environment: all
>     Reporter: Anton Pevtsov
>     Assignee: Martin Sebor
>     Priority: Minor
>      Fix For: 4.1.4

>
> $ cat t.cpp && make t
> #include <algorithm>
> struct Size
> {
>     operator int() { return 0; }
> private:
>     void operator=(Size&);
> };
> template int* std::search_n(int*, int*, Size, const int&, int (*)(int, int));
> int main() { return 0; }
> ./include/algorithm.cc: In function '_FwdIter std::__search_n(_FwdIter, _FwdIter, _Dist*,
_Size, const _TypeT&, _BinaryPredicate) [with _FwdIter = int*, _Dist = int, _Size = Size,
_TypeT = int, _BinaryPredicate = int (*)(int, int)]':
> ./include/algorithm:304:   instantiated from '_FwdIter std::search_n(_FwdIter, _FwdIter,
_Size, const _TypeT&, _BinaryPredicate) [with _FwdIter = int*, _Size = Size, _TypeT =
int, _BinaryPredicate = int (*)(int, int)]'
> t.cpp:11:   instantiated from here
> ./include/algorithm.cc:303: error: conversion from 'int' to non-scalar type 'Size' requested
> ./include/algorithm.cc:311: error: no match for 'operator=' in '__matches = 0'
> t.cpp:8: note: candidates are: void Size::operator=(Size&)
> ./include/algorithm.cc:315: error: no match for 'operator++' in '++__matches'
> make: *** [t.o] Error 1

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