string::string

string

Description

Default constructor, creates a new empty string object

Constructs a string object from a null-terminated string.

Constructs a string object from a character that is repeated nRepeat times.

Constructs a string object from an array of characters of length nlength, not null-terminated.

Constructs a string object from any _VARIANT type variable which holds a string

Syntax

string( )

string( LPCSTR lpcszSrc )

string( char ch, int nRepeat = 1 )

string( LPCTSTR lpch, int nLength )

string( _VARIANT var )

Parameters

lpcszSrc

[input]A null-terminated string to be copied into this string object.

ch

[input]A single character to be repeated nRepeat times.

nRepeat

[input]The repeat count for ch.

lpch

[input] A pointer to an array of characters.

nLength

[input]length of characters.

var

[input]a _VARIANT object

Return

None.

None.

None.

None.

Examples

EX1

void string_string_ex1()
{
    string str1;  //empty string
        bool bRet = str1.IsEmpty();
        out_int("", bRet)//true
}

EX2

void string_string_ex2()
{
        string str2("cow");  //create from a string literal
        out_str(str2);//"cow"
}

EX3

void string_string_ex3()
{
    string str3('a',6);  
        out_str(str3);//"aaaaaa"
}

EX4

void string_string_ex4()
{
        char * str = "Origin C";
        int nLength = 6;//Set length 6,Only store the first 6 characters of string
        string str4(str,nLength);
        out_str(str4);//"Origin"
}

EX5

void string_string_ex5()
{
   _VARIANT obj;
   string s = "Hello";
   obj = s;
   string str = obj;
}

Remark

See Also

header to Include

origin.h