C Programming - Pointers - Discussion
Discussion Forum : Pointers - General Questions (Q.No. 2)
2.
Can you combine the following two statements into one?
char *p;
p = (char*) malloc(100);
Discussion:
82 comments Page 3 of 9.
Katty said:
1 decade ago
The space is allotted for pointers.
Rafael Bluhm said:
1 decade ago
Is not correct to cast*void types in C. Malloc returns a void pointer, and compiles cast it automatically.
The correct is char*p = malloc(100);
The correct is char*p = malloc(100);
Appala prathyusha said:
1 decade ago
How do we know the address of i?
Sandeep said:
1 decade ago
#include<stdio.h>
int main(){
int i=320;
char *ptr=(char*)&i;
printf("%d",*ptr);
return 0;
}
The answer is 64 because it will take will only first 8 bits from 16 bits of int.
int main(){
int i=320;
char *ptr=(char*)&i;
printf("%d",*ptr);
return 0;
}
The answer is 64 because it will take will only first 8 bits from 16 bits of int.
Sudhagar said:
1 decade ago
I need more explanation about pointers?
Shabana said:
1 decade ago
#include<stdio.h>
int main(){
int i=320;
char *ptr=(char*)&i;
printf("%d",*ptr);
return 0;
}
Output is: 64;
How can any one explain these please I didn't understand?
int main(){
int i=320;
char *ptr=(char*)&i;
printf("%d",*ptr);
return 0;
}
Output is: 64;
How can any one explain these please I didn't understand?
Mahes said:
1 decade ago
I want clear details in pointer?why we use this concept?
Vasu said:
1 decade ago
In char *p ,
char p = (char*) malloc (100);
(or)
char p = (char*) malloc (100);
Wheteher we are allocating 100 bytes for p or *p?
char p = (char*) malloc (100);
(or)
char p = (char*) malloc (100);
Wheteher we are allocating 100 bytes for p or *p?
Yadhanna said:
1 decade ago
In char *p ,
char p = (char*) malloc (100);
we are allocating 100bytes for a pointer variable "p". What is the need for that ? Are we storing 100 addresses ?
char p = (char*) malloc (100);
we are allocating 100bytes for a pointer variable "p". What is the need for that ? Are we storing 100 addresses ?
Arunsudharsan said:
1 decade ago
main(){
int i=320;
for(int j=1;j<=i-1;j++)
{
char *ptr=(char*)&j;
printf("%d\n",*ptr);
}
return 0;
}
You will get a clear idea @Sivakumar.
int i=320;
for(int j=1;j<=i-1;j++)
{
char *ptr=(char*)&j;
printf("%d\n",*ptr);
}
return 0;
}
You will get a clear idea @Sivakumar.
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