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Fix #14575 FN constVariablePointer with std::wstring #8301

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Fix #14575 FN constVariablePointer with std::wstring #8301

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5eed5c6
Update std.cfg
chrchr-github Mar 6, 2026
a3e937f
Update std.cpp
chrchr-github Mar 6, 2026
1a5eea5
Update std.cpp
chrchr-github Mar 6, 2026
aaecd7c
Update std.cpp
chrchr-github Mar 6, 2026
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17 changes: 17 additions & 0 deletions cfg/std.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -7130,13 +7130,30 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
<returnValue type="const char *"/>
<noreturn>false</noreturn>
</function>
<!-- const wchar_t* c_str() const; // until C++11 -->
<!-- const wchar_t* c_str() const noexcept; // since C++11 -->
<!-- const wchar_t* data() const; // until C++11 -->
<!-- const wchar_t* data() const noexcept; // since C++11 -->
<function name="std::wstring::c_str,std::wstring::data">
<use-retval/>
<const/>
<returnValue type="const wchar_t *"/>
<noreturn>false</noreturn>
</function>
<!-- char& front(); -->
<!-- const char& front() const; -->
<function name="std::string::front">
<use-retval/>
<returnValue type="char &amp;"/>
<noreturn>false</noreturn>
</function>
<!-- wchar_t& front(); -->
<!-- const wchar_t& front() const; -->
<function name="std::wstring::front">
<use-retval/>
<returnValue type="wchar_t &amp;"/>
<noreturn>false</noreturn>
</function>
<!-- size_t find (const string& str, size_t pos = 0) const; -->
<!-- size_t find (const char* s, size_t pos, size_t n) const; -->
<!-- size_t find (char c, size_t pos = 0) const;-->
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16 changes: 15 additions & 1 deletion test/cfg/std.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5166,6 +5166,20 @@ void constVariablePointer_push_back(std::vector<T*>& d, const std::vector<T*>& s
}
}

struct S_constVariablePointer_wstring { // #14575
std::wstring m;
const std::wstring& get() const { return m; }
};

S_constVariablePointer_wstring* g_constVariablePointer_wstring();

void h_constVariablePointer_wstring(const wchar_t*);

void f_constVariablePointer_wstring() {
S_constVariablePointer_wstring* s = g_constVariablePointer_wstring(); // cppcheck-suppress constVariablePointer
h_constVariablePointer_wstring(s->get().c_str());
}

std::streampos constParameterPointer_istream_tellg(std::istream* p) { // #13801
return p->tellg();
}
Expand Down Expand Up @@ -5318,4 +5332,4 @@ int containerOutOfBounds_std_initializer_list() { // #14340
// cppcheck-suppress derefInvalidIterator
int i = *x.end();
return i + containerOutOfBounds_std_initializer_list_access(x);
}
}
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