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How do I convert a double into a string in C++?
A double can be converted into a string in C++ using std::to_string. The parameter required is a double value and a string object is returned that contains the double value as a sequence of characters.
A program that demonstrates this in C++ is given as follows.
Example
#include <iostream> #include <string.h> using namespace std; int main() { double d = 238649.21316934; string s = to_string(d); cout << "Conversion of double to string: " << s; return 0; }
Output
The output of the above program is as follows.
Conversion of double to string: 238649.213169
Now let us understand the above program.
A variable d of double type is initialized with a value 238649.21316934. This double value is converted to a string using to_string(). Finally this is displayed. The code snippet that shows this is as follows.
double d = 238649.21316934; string s = to_string(d); cout << "Conversion of double to string: " << s;
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