Constraints for assigning values according to ansi c:
1. Both operands are pointers to compatible types with or without delimiters.
2. the type pointed to by the Left pointer must have all the qualifiers of the type pointed to by the right
Original article address:Convert: char *,
Char []
, Cstring,
String Conversion
Author:Gisldq
(1) OverviewString and cstring are both string template classes. string is a string class defined by the standard template class (STL) and has been
Programming has been a headache recently. This type of conversion can be done by knowing that it can be switched, but it is always hard to remember. I will keep searching through the Internet and summarize it here. For future convenience, of course,
turn: char*, char[], CString, string conversion (i) OverviewString and CString are string template classes, string classes defined by the Standard template class (STL), are included in the C + + standard;CString (typedef CStringT > CString) is the
About wchar_t
In the C ++ standard, wchar_t is a wide character type. Each wchar_t type occupies 2 bytes and has a 16-bit width. Wchar_t is required for the representation of Chinese characters. Char, we all know, occupies a byte, 8-bit width.
Note: The const and typedef are very special when used together
Trap One:
Remember, a typedef is a new alias that defines a type, and unlike macro, it is not a simple string replacement. Like what:First define:typedef char* PSTR;And then:int
Cstring, Int, String, char * ConversionString to cstringCstring. Format ("% s", String. c_str ());Convert Char to cstringCstring. Format ("% s", char *);Char to stringString S (char *);String to char *Char * P = string. c_str ();Cstring to
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