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Chapter 10: Problem 3

Assume c is a char variable. What value does c hold after each of the following statements executes? Statement \(\quad\) Contents of \(c\) \(c=\) toupper \(\left(^{\prime} a^{\prime}\right)\) ___ \(c=\) toupper \(\left(^{\prime} B^{\prime}\right)\) ___ \(c=\) tolower \(\left(^{\prime} D^{\prime}\right)\) ___ \(c=\) toupper \(\left(^{\prime} e^{\prime}\right)\) ___

Short Answer

Expert verified
Answer: 1) 'A' 2) 'B' 3) 'd' 4) 'E'

Step by step solution

01

Statement 1: toupper('a')

The input is 'a', which is a lowercase letter. The toupper function will convert it to its uppercase counterpart. So, the contents of variable 'c' would be 'A'.
02

Statement 2: toupper('B')

The input is 'B', which is an uppercase letter. Since it's already in uppercase, the toupper function will not change it. So, the contents of the variable 'c' would remain 'B'.
03

Statement 3: tolower('D')

The input is 'D', which is an uppercase letter. The tolower function will convert it to its lowercase counterpart. So, the contents of the variable 'c' would be 'd'.
04

Statement 4: toupper('e')

The input is 'e', which is a lowercase letter. The toupper function will convert it to its uppercase counterpart. So, the contents of the variable 'c' would be 'E'.

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Most popular questions from this chapter

What header file must you include in a program using string class objects?

True or False The strcpy function performs no bounds checking on the first argument.

True or False If toupper's argument is already uppercase, it is returned as is, with no changes.

What header file must you include in a program using the character conversion functions toupper and tolower?

Write a function that accepts a pointer to a C-string as its argument. The function should count the number of times the character 'w' occurs in the argument and return that number.
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