How can we concatenate a string with a float?

[learning_C++]

Hi,
I have two variables. One is string "s" and the other is float "f". I
hope to concatenate them and get a new string.
I tried s=s+f. But it failed.

Please help me.

Thanks.

 

[Default User]

Hi,
I have two variables. One is string "s" and the other is float "f". I
hope to concatenate them and get a new string.
I tried s=s+f. But it failed.

http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-38.
1




Brian Rodenborn

 

[Ron Natalie]

Hi,
I have two variables. One is string "s" and the other is float "f". I
hope to concatenate them and get a new string.
I tried s=s+f. But it failed.

String only concatenates other strings.

If you want to format output you need a stream. A stringstream will allow you
to capture that output in a string.

float f;
string s;
ostringstream ostr;
ostr << s << f;
s = ostr.str();