How is precedence determined in C pointers?
Posted
by
ankur.trapasiya
on Programmers
See other posts from Programmers
or by ankur.trapasiya
Published on 2011-11-21T20:20:23Z
Indexed on
2011/11/22
2:09 UTC
Read the original article
Hit count: 375
I've come across two pointer declarations that I'm having trouble understanding. My understanding of precedence rules goes something like this:
Operator Precedence Associativity
(), [ ] 1 Left to Right
*, identifier 2 Right to Left
Data type 3
But even given this, I can't seem to figure out how to evaluate the following examples correctly:
First example
float * (* (*ptr)(int))(double **,char c)
My evaluation:
*(ptr)
(int)
*(*ptr)(int)
*(*(*ptr)(int))
Then,
double **
char c
Second example
unsigned **( * (*ptr) [5] ) (char const *,int *)
*(ptr)
[5]
*(*ptr)[5]
*(*(*ptr)[5])
**(*(*ptr)[5])
How should I read them?
© Programmers or respective owner