home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Turnbull China Bikeride
/
Turnbull China Bikeride - Disc 1.iso
/
ARGONET
/
PD
/
PROGRAMMING
/
LCLINT2.SPK
/
test
/
test_b
/
c
/
null4
< prev
next >
Wrap
Text File
|
1996-08-28
|
653b
|
48 lines
# include "bool.h"
/*@only@*/ /*@null@*/ int *p;
extern /*@truenull@*/ bool isNull (/*@null@*/ int *p);
void f (void)
{
if (p != NULL) return;
else
{
p = malloc (24);
if (p == NULL) exit (EXIT_FAILURE);
*p = 3;
}
}
void f1 (void)
{
if (p != NULL) return;
p = malloc (24);
if (p == NULL) exit (EXIT_FAILURE);
*p = 3;
}
int f2 (void)
{
if (p == NULL) return 0;
return *p;
}
int f3 (void)
{
if (isNull(p)) return 0;
return *p;
}
void g (void)
{
if (p == NULL) return;
p = malloc (24); /* 1. Only storage p not released before assignment */
if (p == NULL) exit (EXIT_FAILURE);
*p = 3;
}