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2.2.3.15.38 string::string

string

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 Header to Include

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.

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

Header to Include

origin.h