What is the difference between declaration and definition?
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Answer / adarsh gupta
Function declaration -
*Requires semicolon,
*Contains actual parameters,
*Tells about the type of value returned by function,
*This unit can't be invoked from other parts of program.
Function definition-
*Don't require semi coloun,
*Contans the main part(main ligic) of the program,
*Can be invoked from other parts of program,
*Uses formal parameters.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / alok
defination=(declration+space reservation)
int a; -------------Declaration
a=20; ------------- Defination
For Function
int alok(int a,int b); ---------------Declaration
int a=alok(5,10) ---------------Function call
int alok(int a,int b) Function Defination Logic is here
{
int c=a+b;
return(c);
}
// Alok contact number 9993032168,9650549204
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / soumyajit
During declaration we just specify the type and no memory
is allocated to the variable. But during the definition an
initial value is assigned and memory is allocated to the
variable.
or we can also say,
Declaration means just telling to complier about variable
or function but definition means actually allocating memory
for variable.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / durga devi.s
variable must be declared and defined before used in the program
variable declaration:
1. tells the compiler what is the name of the variable.
2. specifies what type of data values the variable can hold.
variable definition
1. reserves the memory for the declared variable and store
some value is called garbage value.
-> variable declaration and variable definition done at the
same time.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / arun
if declaration is only informing compiler that the return
data type then the following should not work
int a;
int b;
b=a;
The above code will work even if a has no memory assigned
| Is This Answer Correct ? | 1 Yes | 3 No |
Answer / palsaniya sadikhasan, meta.
Declaration of variable and function means to create memory
for a variable or function.
e.g. int a;
will create a memory 2 byte in main memory.
definition means to assign a value to the particular
variable that are used in function.
| Is This Answer Correct ? | 4 Yes | 6 No |
Declaration means,we just inform to compiler return
type,funtion name and argument list of funtion that later
use in program.Definition define the operation of that
funtion.
| Is This Answer Correct ? | 15 Yes | 20 No |
Answer / amiya
defination=(declration+space reservation)
int a; -------------Declaration
a=20; ------------- Defination
For Function
int amiya(int a,int b); ---------------Declaration
int a=amiya(5,10) ---------------Function call
int amiya(int a,int b) Function Defination Logic is here
{
int c=a+b;
return(c);
}
| Is This Answer Correct ? | 24 Yes | 33 No |
Answer / sandhya shetty
Declaration means only declaring a function or a variable
with its return type or datatype respectively.
Definition means assiging values to variable or procedure
to be performed by a function.
| Is This Answer Correct ? | 21 Yes | 41 No |
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