C Programming - Declarations and Initializations - Discussion
Discussion Forum : Declarations and Initializations - General Questions (Q.No. 4)
4.
Is there any difference between following declarations?
| 1 : | extern int fun(); |
| 2 : | int fun(); |
Answer: Option
Explanation:
extern int fun(); declaration in C is to indicate the existence of a global function and it is defined externally to the current module or in another file.
int fun(); declaration in C is to indicate the existence of a function inside the current module or in the same file.
Discussion:
56 comments Page 4 of 6.
Raj said:
1 decade ago
Can anyone tell me how can we access one C program to another one with external variable.
Rishikumar said:
1 decade ago
How can we declare functions with extern keyword and how can we access that function ?
Nagarjuna said:
1 decade ago
How can we declare functions with extern keyword and how can we access that function ?
Pradeep bhupathi said:
2 decades ago
Extern is a keyword which is used to define any variable or function in externally.
Sruthi said:
9 years ago
Is the variable declared as extern similar to the variable declared under main?
Sirisha said:
1 decade ago
What is global function and why extern keyword used to declare a function?
Arvind kumar said:
1 decade ago
It gives the address of memory location so we can use the specific value.
Sm das said:
1 decade ago
It is a keyword which functioning same as global and local variables.
Nancy said:
1 decade ago
While using extern keyword, memory is allocated to variable or not?
Revathi said:
10 years ago
What is the different between normal function and extern function?
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