Is there alternative for front() in c++ 03?

Question

 string utf2oem( string const & in_str ) { int n = MultiByteToWideChar( CP_UTF8, 0, in_str.data(), in_str.size(), NULL, 0 ); if( n == 0 ) return in_str; wstring tmp; tmp.resize( n ); int ret = MultiByteToWideChar(CP_UTF8, 0, in_str.data(), in_str.size(), &tmp.front(), tmp.size() ); if( ret == 0 ) return in_str; string out_str; out_str.resize( n ); ret = WideCharToMultiByte(CP_OEMCP, 0, tmp.data(), n, &out_str.front(), n, NULL, NULL); return( ret == 0 ? in_str : out_str ); }

I try to use this function but get error : error C2039: 'front' : is not a member of 'std::basic_string<_Elem,_Traits,_Ax>'

So can i use something instead front() in Visual C++ 2008 with boost 1.38?

in_str[0]

Benjamin Lindley
– Benjamin Lindley

2014-10-13 23:01:42 +00:00
Commented Oct 13, 2014 at 23:01 — Benjamin Lindley
– Benjamin Lindley, Commented Oct 13, 2014 at 23:01

Tacet · Accepted Answer · 2014-10-14 00:57:30Z

Front returns first element, so you can manually refer to it. You can acces to element like in a table.

&our_str[0] //insted of &our_str.front()

Or use the function .data() made specifically to this. But remember "Modifying the character array accessed through data is undefined behavior." (from en.cppreference.com)

our_str.data()

But if you need an iterator to begin, you can use .begin().

our_str.begin()

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