Go CString Turn char *, string

 

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CString header file #include <afx.h>

String header file #include <string.h>

1. CString turn char *

CString CStr;

Char *p = (LPSTR) (LPCTSTR) CStr;

2. string Turn CString
Cstring.format ("%s", String.c_str ());

Using c_str () is really better than data () .

3. Char turn CString
Cstring.format ("%s", char*);

4. Char to string
string S (char *);

Can only be initialized, preferably in a place that is not initialized or with assign ().

5. string to char *
Char *p = STRING.C_STR ();

6. CString turn string
String s (Cstring.getbuffer ());

GetBuffer () must be releasebuffer (), otherwise the space occupied by the buffer will not be released .

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in the C + + standard function library.
There are three functions to convert the contents of a string to a character array and c―string
1,data (), returns a string array without "/0"
2,c_str (), returns a string array with "/0"
3.copy ()

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conversion between CString and int,char*,char[100] --

1. CString Mutual transfer int

(1) Convert characters to integers, you can use atoi,_atoi64, or atol.
(2) to convert a number to a CString variable, you can use the CString format function. Such as
CString s;
int i = 64;
S.format ("%d", i)
The Format function is very powerful and deserves your research.

Voidcstrdlg::onbutton1 ()
{
Todo:add your control Notificationhandler code here
CString
Ss= "1212.12″;
int Temp=atoi (ss);
CString AA;
Cal Format ("%d", temp);
AfxMessageBox ("var is" + AA);
}

Sart. Format ("%s", buf);

2. CString Mutual transfer char*

CString strtest;
char * CHARPOINT;

char * to CString
Charpoint= "Give string a value";
Strtest=charpoint;

CString to char *
Charpoint=strtest. GetBuffer (strtest. GetLength ());

no String,char*==char in standard C []==string

You can use the Cstring.format ("%s", char *) method to turn char * into CString. To turn CString into char*, use the operator (LPCSTR) toCString it.

3. CString conversion char[100]

CHAR[100] Tocstring

Char a[100];
CString Str ("aaaaaa");

CString to char[100]

strncpy (A, (LPCTSTR) str,sizeof (a));

Go CString Turn char *, string