C++ String cbegin() function

C++ String cbegin() function tutorial for beginners and professionals with examples on constructor, if-else, switch, break, continue, comments, arrays, object and class, exception, static, structs, inheritance, aggregation etc.

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C++ String cbegin()

It gives a reference to the first element of the string.

Difference b/w cbegin() and begin()

The only difference between cbegin() and begin() is cbegin() returns the constant iterator pointing to the constant value.

Syntax

Consider a string str. Its syntax would be:

str.cbegin();

Parameter

This function does not contain any parameter.

Return value

This function returns the reference pointing to the first element of the string.

Example 1

Let's see a simple example:

#include<iostream>
#include<string>
using namespace std;
int main()
{
string str = "java tutorial";
for(int i =str.cbegin();i!=str.end();i++)
cout<<str[i];
return 0; 
}

In this example, string 'java tutorial' is displayed using cbegin() function.

Output:

java tutorial

Example 2

Let's see another simple example:

#include<iostream>
#include<vector>
#include<iterator>
using namespace std;
int main()
{
vector<int> v;
v.push_back(1);
v.push_back(2);
v.push_back(3);
v.push_back(4);
v.push_back(5);
for(auto i =v.cbegin();i!=v.end();++i)
cout<<*i;
return 0; 
}

Output:

In this example, vector containing integer values are displayed using cbegin().

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