how to convert a string to number

palani12kumar

hi. I want to get a string as input.
If the input is an integer i want to save it to an int variable.
I know to convert a number to int. but how to convert a string to number(integer). in C++

horace1

Quote:

Originally Posted by palani12kumar

hi. I want to get a string as input.
If the input is an integer i want to save it to an int variable.
I know to convert a number to int. but how to convert a string to number(integer). in C++

In C++ you can use stringstream for this, see
http://www.cppreference.com/cppsstream/all.html

wiss

Quote:

Originally Posted by palani12kumar

hi. I want to get a string as input.
If the input is an integer i want to save it to an int variable.
I know to convert a number to int. but how to convert a string to number(integer). in C++

you can apply atoi () or atof () from the c language.

string s = "10";
int i = atoi(s.c_str());

palani12kumar

Thank you for the kind Help

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