C Programming - Arrays - Discussion
Discussion Forum : Arrays - Find Output of Program (Q.No. 7)
7.
What will be the output of the program in Turb C (under DOS)?
#include<stdio.h>
int main()
{
int arr[5], i=0;
while(i<5)
arr[i]=++i;
for(i=0; i<5; i++)
printf("%d, ", arr[i]);
return 0;
}
Answer: Option
Explanation:
Since C is a compiler dependent language, it may give different outputs at different platforms. We have given the TurboC Compiler (Windows) output.
Please try the above programs in Windows (Turbo-C Compiler) and Linux (GCC Compiler), you will understand the difference better.
Discussion:
38 comments Page 3 of 4.
Thanvi said:
1 decade ago
Can any one explain the difference between a++, ++a ?
Gurjar said:
1 decade ago
In GCC compiler (Linux (Fedora 20)) it will give output
4195728, 1, 2, 3, 4,
Where 4195728 is garbage value.
4195728, 1, 2, 3, 4,
Where 4195728 is garbage value.
Kyaw win thu said:
1 decade ago
I want to know the definition of garbage value with example please.
Vik said:
1 decade ago
In second for loop the condition not satisfied at last step so it prints garbage value.
Hotcpu said:
1 decade ago
I try the online gcc compiler by adding the following code,
while(i<5)
{
arr[i]=++i;
printf("i=%d arr[%d]=%d,%d \n",i,i,arr[i],arr[i-1]);
}
The interesting thing is that in the first step,
it actually did: arr[0]=++0;
So, here is the question should ++ operator affect both side of "="?
while(i<5)
{
arr[i]=++i;
printf("i=%d arr[%d]=%d,%d \n",i,i,arr[i],arr[i-1]);
}
The interesting thing is that in the first step,
it actually did: arr[0]=++0;
So, here is the question should ++ operator affect both side of "="?
Abhishek said:
1 decade ago
In DevC++.
Output are:
2358963,1,2,3,4
Output are:
2358963,1,2,3,4
Mayank said:
1 decade ago
++ has greater preference than assignment, rest you will understand automatically. Its better hint!
Vinay yadav said:
1 decade ago
In Turbo C, Compiler return garbage value if the a[0] is not initialized but in GCC it return 0 so output is different.
Ecc29 said:
1 decade ago
Can anyone explain the output difference between Turbo C and GCC please?
Abhimanyu said:
1 decade ago
How it will give garbege value?
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