istringstream split_string(line) how to update the split_string while changing line without using while loop?

line = "hello 2021"  istringstream split_string(line);  

was a useful code to get the values from a string, i.e.

split_string>>str>>temp_double;  

However, suppose that the value of line was changed, i.e.

line="hello world"  

,and one wanted to write the following code with the updated value of line.

split_string>>str1>>str2;  

How to update split_string so that it streamed the updated value of line?

https://stackoverflow.com/questions/66468370/istringstream-split-stringline-how-to-update-the-split-string-while-changing-l March 04, 2021 at 11:58AM