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https://issues.apache.org/jira/browse/STDCXX-272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476245
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Farid Zaripov commented on STDCXX-272:
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I can't repeat the issue.
The test aborts within find_first_of() method due to _RWSTD_REQUIRES (__n <=
max_size (),) macro.
Here __n is std::string::npos, but max_size() returns value less than
std::string::npos.
Another point: is that std::string::npos can be used in find_first_of() call?
The standard says that n should be less than npos:
21.3.7.3
size_type
find_first_of(const charT* s , size_type pos , size_type n ) const;
4 Returns: find_first_of(basic_string<charT,traits,Allocator>(s ,n ),pos ).
21.3.2
basic_string(size_type n , charT c , const Allocator& a = Allocator());
11 Requires: n < npos
> std::string::find_first_of() returns 0 for the empty string
> -----------------------------------------------------------
>
> Key: STDCXX-272
> URL: https://issues.apache.org/jira/browse/STDCXX-272
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 21. Strings
> Affects Versions: 4.1.3, 4.1.2
> Environment: all
> Reporter: Martin Sebor
> Assigned To: Martin Sebor
>
> The program below is expected to run succeffully to completion (since the
> returned value must be less than the size of the string) but instead it
> aborts.
> $ cat t.cpp && nice gmake t && ./t
> #include <cassert>
> #include <string>
> int main ()
> {
> std::string::size_type xpos =
> std::string ("").find_first_of ("cba", 0, std::string::npos);
> assert (std::string::npos == xpos);
> }
> aCC -c -I/amd/devco/sebor/dev/stdlib/include/ansi -I/usr/include
> -D_RWSTDDEBUG -D_RWSTD_USE_CONFIG -I/amd/devco/sebor/dev/stdlib/include
> -I/build/sebor/aCC-3.70-11d/include
> -I/amd/devco/sebor/dev/stdlib/examples/include -Aa +nostl -g +d +w +W392
> +W655 +W684 +W818 +W819 +W849 t.cpp
> aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings
> -L/build/sebor/aCC-3.70-11d/lib -L/build/sebor/aCC-3.70-11d/lib -lstd11d
> -lm
> ABORT instruction (core dumped)
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