char_traits::eof
Returns the end-of-file (EOF) character.
static int_type eof();
Return Value
The EOF character.
Remarks
A value that represents end of file (such as EOF or WEOF).
The C++ standard states that this value must not correspond to a valid char_type value. The Visual C++ compiler enforces this constraint for type char, but not for type wchar_t. The example below demonstrates this.
Example
// char_traits_eof.cpp
// compile with: /EHsc
#include <string>
#include <iostream>
int main()
{
using namespace std;
char_traits<char>::char_type ch1 = 'x';
char_traits<char>::int_type int1;
int1 = char_traits<char>::to_int_type(ch1);
cout << "char_type ch1 is '" << ch1 << "' and corresponds to int_type "
<< int1 << "." << endl << endl;
char_traits<char>::int_type int2 = char_traits<char>::eof();
cout << "The eof marker for char_traits<char> is: " << int2 << endl;
char_traits<wchar_t>::int_type int3 = char_traits<wchar_t>::eof();
cout << "The eof marker for char_traits<wchar_t> is: " << int3 << endl;
}
char_type ch1 is 'x' and corresponds to int_type 120. The eof marker for char_traits<char> is: -1 The eof marker for char_traits<wchar_t> is: 65535
Requirements
Header: <string>
Namespace: std