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[Bug-cflow] pb with pointers and function address
From: |
THORE, Pascal |
Subject: |
[Bug-cflow] pb with pointers and function address |
Date: |
Tue, 11 Jul 2006 11:16:41 +0200 |
Hi,
I'm using gnucflow and i found a problem with pointers.
Example1 :
=> with one function : function1
void function1(void)
{
int *pt;
pt = function1;
}
gnu cflow ouptut => function1() <void function1 (void) at
essai.c:1> (R):
function1() <void function1 (void) at
essai.c:1> (recursive: see 1)
There is no effective call to function1: fonction1's address is
assigned to pointer pt.
gnucflow can't see it's not a real call ?
=> with 2 functions : function1 and and unknow function 'function2'
(just like any symbol)
void function1(void)
{
int *pt;
pt = function2;
}
gnu cflow ouptut => function1() <void function1 (void) at
essai.c:1>:
it's OK !
=> with function2's prototype :
void function2(void);
void function1(void)
{
int *pt;
pt = function2;
}
gnu cflow ouptut => function1() <void function1 (void) at
essai.c:3>:
it's OK !
=> with function2's body :
void function2(void)
{
;
}
void function1(void)
{
int *pt;
pt = function2;
}
gnu cflow ouptut => function1() <void function1 (void) at
essai.c:6>:
function2() <void function2
(void) at essai.c:1>
it's not OK !
Best regards,
Pascal THORE
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