Uniform Use of std::string

There are seventeen places in the C++ Standard Library where we use char* strings in the interface; in each of these places we can add an overload that takes an object of type std::string.

In [lib.locale], 22.1.1, add the following constructors:

explicit locale(string std_name);
locale(const locale& other, string std_name, category);

In [lib.locale.cons], 22.1.1.2, after the entry for explicit locale(const char * std_name), add the following:

explicit locale(string std_name);

Effects: the same as locale(std_name.c_str()).

In [lib.locale.cons], 22.1.1.2, after the entry for locale(const locale& other, const char* std_name, category), add the following:

locale(const locale& other, string std_name, category cat);

Effects: the same as locale(other, std_name.c_str(), cat).

In [lib.locale.facet], 22.1.1.1.2, paragraph 4, after the sentence "Each such facet provides a constructor that takes a const char* argument, which names the locale, and a refs argument, which is passed to the base class constructor" add the following sentence:

Each such facet also provides a constructor that takes a string argument str and a refs argument, which has the same effect as calling the first constructor with the two arguments str.c_str() and refs.

In [lib.locale.ctype.byname], 22.2.1.2, after the declaration of the constructor, add the following constructor:

explicit ctype_byname(string, size_t refs = 0);

In [lib.locale.codecvt.byname], 22.2.1.5, after the declaration of the constructor, add the following constructor:

explicit codecvt_byname(string, size_t refs = 0);

In [lib.locale.numpunct.byname], 22.2.3.2, after the declaration of the constructor, add the following constructor:

explicit numpunct_byname(string, size_t refs = 0);

In [lib.locale.collate.byname], 22.2.4.2, after the declaration of the constructor, add the following constructor:

explicit collate_byname(string, size_t refs = 0);

In [lib.locale.time.get.byname], 22.2.5.2, after the declaration of the constructor, add the following constructor:

explicit time_get_byname(string, size_t refs = 0);

In [lib.locale.time.put.byname], 22.2.5.4, after the declaration of the constructor, add the following constructor:

explicit time_put_byname(string, size_t refs = 0);

In [lib.locale.moneypunct.byname], 22.2.6.4, after the declaration of the constructor, add the following constructor:

explicit moneypunct_byname(string, size_t refs = 0);

In [lib.locale.messages.byname], 22.2.7.2, after the declaration of the constructor, add the following constructor:

explicit messages_byname(string, size_t refs = 0);

In [lib.filebuf], 27.8.1.1, add the following declaration after the declaration of the member function open:

basic_filebuf *open(string s, ios_base::openmode mode);

In [lib.filebuf.members], 27.8.1.3, add the following after paragraph 5:

basic_filebuf *open(string s, ios_base::openmode mode);

Returns: open(s.c_str(), mode);

In [lib.ifstream], 27.8.1.5, add the following declarations to the declaration of basic_ifstream:

explicit basic_ifstream(string s,
    ios_base::openmode mode = ios_base::in);
void open(string s, ios_base::openmode mode = ios_base::in);

At the end of [lib.ifstream.cons], 27.8.1.6, add the following:

explicit basic_ifstream(string s,
    ios_base::openmode mode = ios_base::in);

Effects: the same as basic_ifstream(s.c_str(), mode);

In [lib.ifstream.members], 27.8.1.7, after the entry for open, add the following:

void open(string s, ios_base::openmode mode = ios_base::in);

Effects: calls open(s.c_str(), mode);

In [lib.ofstream], 27.8.1.8, add the following declarations to the declaration of basic_ofstream:

explicit basic_ofstream(string s,
    ios_base::openmode mode = ios_base::out);
void open(string s, ios_base::openmode mode = ios_base::out);

At the end of [lib.ofstream.cons], 27.8.1.9, add the following:

explicit basic_ofstream(string s,
    ios_base::openmode mode = ios_base::out);

Effects: the same as basic_ofstream(s.c_str(), mode);

In [lib.ofstream.members], 27.8.1.10, after the entry for open, add the following:

void open(string s, ios_base::openmode mode = ios_base::out);

Effects: calls open(s.c_str(), mode);

In [lib.fstream], 27.8.1.11, add the following declarations to the declaration of basic_fstream:

explicit basic_fstream(string s,
    ios_base::openmode mode = ios_base::in | ios_base::out);
void open(string s,
    ios_base::openmode mode = ios_base::in | ios_base::out);

At the end of [lib.fstream.cons], 27.8.1.12, add the following:

explicit basic_fstream(string s,
    ios_base::openmode mode = ios_base::in | ios_base::out);

Effects: the same as basic_fstream(s.c_str(), mode);

In [lib.fstream.members], 27.8.1.13, after the entry for open, add the following:

void open(string s,
    ios_base::openmode mode = ios_base::in | ios_base::out);

Effects: calls open(s.c_str(), mode);