Handling Non Integer Function in C Language with Free Notes

Handling Non Integer Function

• We have already learnt that the Function can either return no value or integer values.
• The Function that return no value is declared as void.
• So we have been prefixing int to Functions which return integer values.
• This is valid but unnecessary because the default return value of a function in C is of type int.
• Thus the following two declarations are equivalent in the sense that we need not prefix int to a function which return integer value.

C Language Notes

int 1cd (int a, int b);
1cd (int a, int b);

• on the other hand, whenever a function returns non integer values. The function must be prefixed with the appropriate type.

e.g. a function abc that returns a valeuof type float can be declared as shown below:

float abc(...)
{    
     float a;
     .
     .
     .
     return(a);
}

Similarly a function ABC that returns a value of type char can be declared as:

char ABC(...)
{   char ch;
    .
    .
    .
 } return(ch);