What will be the result of the following program?
main()
{
char p[]="String";
int x=0;
if(p=="String")
{
printf("Pass 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
else
{
printf("Fail 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
}
a) Pass 1, Pass 2
b) Fail 1, Fail 2
c) Pass 1, Fail 2
d) Fail 1, Pass 2
e) syntax error during compilation
- 10 Answers
- 13307 Views
- IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / jaroosh
Fail 1 , Pass 2.
Some explanation,
1. Fail 1
first of all, to compare strings in C, you use this strcmp
function, so this WOULD give PASS 1 :
if(strcmp(p,"String") == 0)
but
if(p=="String")
will fail because this line means :
if address of p is the same as address of some temporary
storage for literals, where literal "String" is stored,
which is very rarely true, because storing literals is
compiler specific and is very hard to estimate at runtime.
2. Pass 2
sizeof(p) gives 7, because sizeof(char) is 1 byte, and we
have 7 chars in array storing "String", which are :
[0]S
[1]t
[2]r
[3]i
[4]n
[5]g
[6]\0 (EOS)
now, clearly sizeof(p) - 2 is [5] which is "g"
thats why
if(p[sizeof(p)-2]=='g')
is true.
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / vikram
b)fail1,fail2
bcoz whenever we compare strings,we use strcmp()
function,hence the condition in if() will not be true,
the control will go into else part and will print fail1,then
size of array p is 6 and sizeof(p)-2 results to 4 and hence
p[4]=='n'which again makes the condition in the if()
false,hence fail2 in else part will be printed.
thnx
| Is This Answer Correct ? | 1 Yes | 1 No |
What does s c mean in text?
What are multibyte characters?
how to generate the length of a string without using len funtion?
What is #include stdlib h?
Is there any data type in c with variable size?
create an SINGLE LINKED LISTS and reverse the data in the lists completely
Difference between for loop and while loop?
I have one doubt. What does below statement mean? #define sizeof(operator) where operator can be int or float etc. Does this statement meaningful and where it can be used?
suppose we use switch statement and we intilize years name using enum statement like(jan,feb,mar,------dec) we take integer value as an input .question is that the month which we analyz is from 0 to 11 bt if i enter 12 than how he again starts from begning and print jan
What is pointer in c?
what is difference between getchar,putchar functions and printf and scanf function? does putchar show output only when input given to it
How can I copy just a portion of a string?
C 
