We have used the integer and character variables many times in our program. Here we will see how they are stored in the memory.
In C the character values are also stored as integers. In the following code, we shall put 270 into a character type data. So the binary equivalent of 270 is 100001110, but takes only first 8-bits from right. So the result will be (00001110), that is 14. Then stores the value into variable a. It also gives warning for overflow.
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In the next variable y, we are trying to store negative number say -130. The negative number will be stored as 2’s complemented method. So the binary of 130 is (10000010). The 2’s complemented value is 01111101 + 1 = 01111110. Here also the right most 8-bits are taken. So the result will be (01111110) = 126
Example
#includeint main() { char x = 270; char y = -130; printf("The value of x is: %d ", x); printf("The value of y is: %d", y); }
输出
The value of x is: 14 The value of y is: 126
