Convet char * To cstring

1. convet char * To cstring

 

Code:

Char * P = "just only test ";

Cstring STR = P;

Compile the aboveCodeThe following error is prompted:

ERrorC2440: 'initializing': cannot convert from 'Char * 'to 'atl: cstringt <basetype, stringtraits>'

 

SolutionJueMethod:

(1) UseThe multibytetowidechar function first converts string encoding to unicode encoding, and then assigns a value to the cstring object.

Char * pstr = "just only test"; <br/> cstring STR; <br/> int nlenth = multibytetowidechar (cp_acp, mb_composite, P,-1, null, 0 ); <br/> tchar * pwstr = new tchar [nlenth]; <br/> multibytetowidechar (cp_acp, mb_composite, P,-1, Q, nlenth ); <br/> STR = Q; <br/> Delete Q; </P> <p>

 

(2) Use the w2a macro

 Uses_conversion; <br/> char * pstr = "just only test"; <br/> cstring STR = a2w (pstr); <br/>

 

 

 

Multibytetowidechar ()

Function: maps a string to a unicode string. The string mapped by this function does not need to be a multi-byte character group.

Function prototype: int multibytetowidechar (uint codePage, DWORD dwflags, lpcstr lpmultibytestr, int cchmultibyte,

Lpwstr lpwidecharstr, int cchwidechar );