Actually i am having one 'c' program . They will enter the code in the Front panal String Control.... For that we have to find the answer using Labview code how to do...
for my understanding, do you want to write a labview function which can read in a "c code" as string and do the same operatione like the real "c program"?
it sound like you want to write a c parser, i´m not sure if there exists someting. To do that you can split your string into an array. Here is an example. After that use a for loop and go through the array.
I'm not sure what it is that your goal is here. You want someone to enter some code in a string and have the application "magically" execute that code. Fundamentally you're looking for a parser, and it doesn't matter whether it's LabVIEW or C. You should look at the parser VIs in the Mathematics -> Script & Formula -> Formula Parsing.