f(char *p)
{
p=(char *)malloc(sizeof(6));
strcpy(p,"HELLO");
}
main()
{
char *p="BYE";
f(p)
printf("%s",p);
}
what is the output?
- 9 Answers
- 17342 Views
- Hughes, Tech Mahindra, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / deepa
SOORY FOR POSTIN THE WRONG ANSWER THE ANSER WUD BE BYE COZ
THE *P DIES IN THE FUNCTION ITSELF AS WE ARE NOT RETURNING
THE STRING BACK IN THE MAIN PROGRAM
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / vijay
The out put is "BYE".
Because the pointer p dies when function exit with out
return,in main pointer p points to only "BYE",so prinf
prints which p points in main.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / smirnov_amm
It will show "HELL"
the f function reserve only 4 bytes with the sizeof(6). it will return the sizeof (int) =4 bytes.
So you only allocate 4 bytes.
When performing the strcpy, you will corupt memory because you'll copy more than allocate.
Cheers
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / yathish m yadav
the output is "hello".
here we are overwriting pointer *p thrice.
that is in the function we get an piece of memory from
malloc and assigned to p,
in the statement strcpy(p,"hello");
the malloc memory is lost and the compiler creates an char
array and copies the string "hello" and it makes the
character array as constant.
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / deepa
the outpu is hello coz the pointer is pointing to a
location where the string "bye" is written in the next
program yu are using the same pointer to point to some
other string so it gets overwritten
| Is This Answer Correct ? | 2 Yes | 5 No |
Answer / anu
the output wll be hello , since the argument is overwritten
with new memory in the function.
so in main, when it comes to printf, p points to the
allocatd memory, which contains hello
| Is This Answer Correct ? | 0 Yes | 3 No |
The output would be "HELLO"..
though we are not returning the string, we are making
direct changes at the memory location..
so "bye" will be overwritten with "HELLO"
because we are using pointers, the dying pointer scenario
is not applicabe here..
Its a pointer, not a variable..
This function will work similar to -> swapping two numbers
using pointers..
juss check that prog if you fnd somewhere.. :-)
you will get the logic... :-)
Cheers...
--By the way a gud ques.. :-)
| Is This Answer Correct ? | 1 Yes | 4 No |
wats the diference btwen constant pointer and pointer to a constant.pls give examples.
What is the general form of a C program?
what is the c source code for the below output? 10 10 10 10 10 10 10 10 10 10 9 9 7 6 6 6 6 6 6 9 7 5 9 7 3 2 2 5 9 7 3 1 5 9 7 3 5 9 7 4 4 4 4 5 9 7 8 8 8 8 8 8 8 8 9
Meaning of () in c
what is the height of tree if leaf node is at level 3. please explain
What are static variables in c?
#include<stdio.h> #include<conio.h> struct stu { int i; char j; }; union uni { int i; char j; }; void main() { int j,k; clrscr(); struct stu s; j=sizeof(s); printf("%d",j); union uni u; k=sizeof(u); printf("%d",k); getch(); } what is value of j and k.
What is scanf_s in c?
How was c created?
1. Write a c pgm to print 1 to 100 without using loops. 2. Write a c pgm for leap year 3. Write a c pgm fibbonacci series,factorial 4. Write a c pgm count no of lines , blanks, tabs in a para(File concept) 5. Write a c pgm to print the letter as per given condition i.e.. if u give 4 out put should b 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6.how do get the o/p in number from 1 to 100 in the screen without using control statement? 7. who do u print the word "hello world" without using "printf" statement? 8. write sql program to get the detail of student in a class? Definitions: structure union arrays linkedlist macros directives difference b/w pre processorsDiffrence: 1.Constructors and destructors 2.Structure and Union 3.Array and Lists 4.pre processor... 5. Privillages in C++ 6.structure and union 7.break and continue 8.while and dowhile Pgm..
what is computer
what is computer engg
C 
