Tip of the Day!

Example 5

Example 4

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Example 3

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Pre/Post increment

In pre-increment operand will be altered in value before it is utilized. In post-increment operand will be altered after it is utilized.

In the above snippet 

x = ++a is equivalent to

a = a +1 then

x = a

y = b++ is equivalent to

y = b

then b = b + 1

So the value of y = 10 and b = 11

Some standard keywords in C

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Note:

If two operands in an assignment expression are different data types, then the value of the expression on the right will automatically be converted to the type of the identifier on the left.

Example 2

#include<stdio.h>

int main()

{

    float f = 10.4;

    float g = 12.3;

    int result;

    result = (f < g) ? 1 : 0;

    printf("%d",&result);

}

what is the output of the above code?

Example 1

#include<stdio.h>

#include<ctype.h>

main()

{

    int lower,upper;

    lower = getchar();

    upper = toupper(lower);

    putchar(upper);

}

Questions:

1.) What is the difference between getchar() and putchar() ?

2.) Can getchar() have arguments? Justify the answer.

3.) What is the need for ctype.h header file?