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Date: Thu, 24 Apr 2008 22:03:55 -0700 (PDT)
From: "Martin Sebor (JIRA)" <jira@apache.org>
To: issues@stdcxx.apache.org
Subject: [jira] Closed: (STDCXX-832) [HP aCC 6.16] warning #4232 in
 <string>: conversion from "wchar_t *" to a more strictly aligned type
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     [ https://issues.apache.org/jira/browse/STDCXX-832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Sebor closed STDCXX-832.
-------------------------------


Fixed.

> [HP aCC 6.16] warning #4232 in <string>: conversion from "wchar_t *" to a more strictly aligned type
> ----------------------------------------------------------------------------------------------------
>
>                 Key: STDCXX-832
>                 URL: https://issues.apache.org/jira/browse/STDCXX-832
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 21. Strings
>    Affects Versions: 4.2.0
>         Environment: aCC: HP C/aC++ B3910B A.06.16 [Nov 26 2007]
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>            Priority: Minor
>             Fix For: 4.2.1
>
>   Original Estimate: 1h
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> Nightly builds with HP aCC 6.16 produce many warnings like the following:
> {noformat}
> aCC -c    -mt -I$(TOPDIR)/include -I$(BUILDDIR)/include  -AA  +O2  +DD64 +w \
>     +W392,655,684,818,819,849 \
>     +W2193,2236,2261,2340,2401,2487 \
>     +W4227,4229,4231,4235,4237,4249 \
>     +W4255,4272,4284,4285,4286,4296,4297 +W3348    \
>     $(TOPDIR)/src/ti_wnum_put.cpp
> "$(TOPDIR)/include/string", line 842: warning #4232-D: conversion from "wchar_t *" to a more strictly aligned type "__rw::__string_ref<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t>> *" may cause misaligned access
>           return _RWSTD_REINTERPRET_CAST (_C_string_ref_type*, _C_data) - 1; 
>                  ^
>           detected during:
>             instantiation of "__rw::__string_ref<_Traits::char_type, _Traits, _Allocator> *std::basic_string<_CharT, _Traits, _Allocator>::_C_pref() const [with _CharT=wchar_t, _Traits=std::char_traits<wchar_t>, _Allocator=std::allocator<wchar_t>]" at line 899
>             instantiation of "void std::basic_string<_CharT, _Traits, _Allocator>::_C_unlink(_Allocator::pointer) [with _CharT=wchar_t, _Traits=std::char_traits<wchar_t>, _Allocator=std::allocator<wchar_t>]" at line 198
>             instantiation of "std::basic_string<_CharT, _Traits, _Allocator>::~basic_string() [with _CharT=wchar_t, _Traits=std::char_traits<wchar_t>, _Allocator=std::allocator<wchar_t>]" at line 99 of "$(TOPDIR)/include/loc/_num_put.cc"
>             instantiation of "_OutputIter std::num_put<_CharT, _OutputIter>::_C_put(_OutputIter, std::ios_base &, _CharT, int, const void *) const [with _CharT=wchar_t, _OutputIter=std::ostreambuf_iterator<wchar_t, std::char_traits<wchar_t>>]" at line 183 of "$(TOPDIR)/include/loc/_num_put.h"
> {noformat}
> Here's the count from a recent build:
> {noformat}
> $ gunzip -c hpux-11.31-ia64-acc-6.16-12S-645002-log.gz | grep "include/string\", .*: warning #4232" | wc -l
> 87
> {noformat}

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