template<class charT, class traits>
basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>& out,
charT c);
template<class charT, class traits>
basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>& out,
char c);
// specialization
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
char c);
// signed and unsigned
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
signed char c);
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
unsigned char c);
Effects: Behaves as a formatted output function ( [ostream.formatted.reqmts]) of out. Constructs a character sequence seq. If c has type char and the character type of the stream is not char, then seq consists of out.widen(c); otherwise seq consists of c. Determines padding for seq as described in [ostream.formatted.reqmts]. Inserts seq into out. Calls os.width(0).
Returns: out.
template<class charT, class traits>
basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>& out,
const charT* s);
template<class charT, class traits>
basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>& out,
const char* s);
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
const char* s);
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
const signed char* s);
template<class traits>
basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>& out,
const unsigned char* s);
Requires: s shall not be a null pointer.
Effects: Behaves like a formatted inserter (as described in [ostream.formatted.reqmts]) of out. Creates a character sequence seq of n characters starting at s, each widened using out.widen() ([basic.ios.members]), where n is the number that would be computed as if by:
traits::length(s) for the overload where the first argument is of type basic_ostream<charT, traits>& and the second is of type const charT*, and also for the overload where the first argument is of type basic_ostream<char, traits>& and the second is of type const char*,
std::char_traits<char>::length(s) for the overload where the first argument is of type basic_ostream<charT, traits>& and the second is of type const char*,
traits::length(reinterpret_cast<const char*>(s)) for the other two overloads.
Determines padding for seq as described in [ostream.formatted.reqmts]. Inserts seq into out. Calls width(0).
Returns: out.