C++ String find()

Last Updated: 06-May-2020

C++ String find()

The find() method searches for a string inside a given string.

Example

C++ Compiler

#include <iostream> using namespace std; int main() { string str1 = "wikimass for programmers"; string str2 = "for"; cout << "Position of 'for': "; cout << str1.find(str2); return 0; }

Run

Syntax

str1.find(str2, pos)

Parameter Values

Value	Type	Explanation
str1	Required	Specifies a string where the search is performed.
str2	Required	Specifies a string to search for.
pos	Optional	Specifies the initial position from where the string search is to begin. Default value of starting position is 0.

Return Value

Value	Explanation
Number (index value)	Returns the index of the first occurrence of sub-string.
Garbage value	If the search value is not found.

More Examples

In the following example, the search starts from the index value 7

Example

C++ Compiler

#include <iostream> using namespace std; int main() { string str1 = "wikimass for programmers"; string str2 = "for"; cout << "Position of 'for': "; cout << str1.find(str2, 7); return 0; }

Run

If the search value is not found, then find() method returns garbage value.

Example

C++ Compiler

#include <iostream> using namespace std; int main() { string str1 = "wikimass for programmers"; string str2 = "forest"; cout << "Position of 'forest': "; cout << str1.find(str2); return 0; }

Run

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