C Programming - Pointers - Discussion
Discussion Forum : Pointers - Find Output of Program (Q.No. 14)
14.
What will be the output of the program ?
#include<stdio.h>
int main()
{
char *str;
str = "%d\n";
str++;
str++;
printf(str-2, 300);
return 0;
}
Discussion:
43 comments Page 2 of 5.
RAJ KISHOR YADAV said:
1 decade ago
#include <stdio.h>
int main()
{
char *str="**********";
int i;
for(i=0;i<=3;i++)
printf("%*..*s\n",30,i,str);
return 0;
}
Hi guys,
Can any explain it?
int main()
{
char *str="**********";
int i;
for(i=0;i<=3;i++)
printf("%*..*s\n",30,i,str);
return 0;
}
Hi guys,
Can any explain it?
Srbh said:
1 decade ago
char *ch;
ch="%d";
printf(ch,300);
printf("ch\n",300);
printf(ch,"300");
Anyone please explain me how these 3 printf statements differs ?
ch="%d";
printf(ch,300);
printf("ch\n",300);
printf(ch,"300");
Anyone please explain me how these 3 printf statements differs ?
Aditya Pandey said:
9 years ago
Let adress of str =5000.
When it increased twice = 500+(1*4)+1*4)=5008.
But in the next line, there is str-2, it comes back on it's previous location.
So it prints value 300.
When it increased twice = 500+(1*4)+1*4)=5008.
But in the next line, there is str-2, it comes back on it's previous location.
So it prints value 300.
Ashlesha said:
1 decade ago
Are you want to say in last step that if str-1 it will pt to 102 and again to 100. That means here compiler will take str-2 is for twice time instead of 2 bytes. , right?
Sahana said:
1 decade ago
printf("%d",300); and print 300.
But in case like:
char *str;
str="abc";
printf(str,"mno\n");
The output will be "abc".
But in case like:
char *str;
str="abc";
printf(str,"mno\n");
The output will be "abc".
Siya said:
9 years ago
Can we declare print statement like printf(str-2, 300);?
MY question is where is "%c" or " "%s"in printf statement. If it is true then how it works?
MY question is where is "%c" or " "%s"in printf statement. If it is true then how it works?
(1)
Vinay said:
1 decade ago
We all know that we cannot substract any integer value in pointer then how can we substract 2 in it please. Any one who know answer this ?
Sujith said:
1 decade ago
str-2 one's incremented then it becomes str-1
then again incremented then it becomes str
then str="%d\n"; then 300 will print
then again incremented then it becomes str
then str="%d\n"; then 300 will print
Santhisuresh said:
1 decade ago
We gave str++ two times it gives str=str+2. In printing we are subtract 2 from str+2(i.e str+2-2). Therefore it prints the same value.
HarshaN said:
1 decade ago
@Vallabh
Why only one argument in the printf gets printed instead of two arguments in your second example?
Some one pls explain
Why only one argument in the printf gets printed instead of two arguments in your second example?
Some one pls explain
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