{"post":"

Many times we need to convert an int value to a string for a number of purposes. To do this, we may use any of the following methods:

Using string stream
Using to_string() function

# Using string stream

String streams are similar to iostream and fstream but they allow us to perform I/O operations on string. Just like fstream, it has three main classes:

stringstream: for both input and output
ostringstream: for only output
istringstream: for only input

To convert an int to a string using stringstream, we first create an output stream object which inserts a number as a stream into the object and then, with the help of str() function of stringstream, the number is internally converted to a string.

Implementation

#include <iostream>\n#include <sstream>\t//for string stream\n#include <string>\t//for strings\nusing namespace std;\n\nint main()\n\n{\n\tint num = 10;\n\n\tostringstream ob;\n\n\tob << num;\t//pushing num into output string stream\n\n\tstring str;\n\n\tstr = ob.str();\t//conversion of num to string\n\n\tcout << \"String is:\" << str;\n\n\treturn 0;\n\n}\n

Output

String is:10\n

# Using to_string() function

The C++ string header file provides a function to convert an int to string called to_string(). The function accepts a number of any datatype, int, float, long, double etc, and returns the number in the string.

Implementation:

#include <iostream>\n#include <string>   \t//for strings\nusing namespace std;\n\nint main()\n\n{\n\tint num = 12;\n\n\tstring str;\n\n\tstr = to_string(num);\n\n\tcout << \"String is:\" << str;\n\n\treturn 0;\n\n}\n

Output

String is:12\n

\n","title":"int to string in C++","authorDetails":{"name":"Garvit Gulati","slug":"garvit-gulati"},"description":"Learn how to convert an integer to a string in C++ using the string stream method and the to_string() function. This tutorial will walk you through the steps of implementing these methods in your code, providing examples.","slug":"blog/convert-int-to-string-in-cpp/","articleId":"636a83417bb1ce5072622b52","bookmarkStatus":{"isBookmarked":false,"bookmarkId":null}}