|
How can I access structure fields by name at run time?
C Interview Questions and Answers
(Continued from previous question...)
How can I access structure fields by name at run time?
Keep track of the field offsets as computed using the offsetof() macro . If structp is a pointer to an instance of the structure, and field f is an int having offset offsetf, f's value can be set indirectly with
*(int *)((char *)structp + offsetf) = value;
(Continued on next question...)
Other Interview Questions
| 