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Chapter 10: Problem 34

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

Short Answer

Expert verified
Answer: True

Step by step solution

01

Understanding the toupper function

The toupper function is used to convert a given character to its uppercase variant. If the given character is already in uppercase or if it's not a letter (i.e., it's a digit, punctuation mark, or special character), the function should return the character as is, without performing any changes.
02

Determining if the given statement is true or false

Since the toupper function should return an uppercase character as is when it's already in uppercase, the given statement can be considered as true.
03

Final Answer

The statement is True. If the toupper function is given an argument that is already in uppercase, it will return the argument as is, without making any changes.

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Most popular questions from this chapter

Look at the following statements. char str[] = "237.89"; double value; Write a statement that converts the string in str to a double and stores the result in value.

Look at the following array definition. char str [10]; Assume that name is also a char array, and it holds a C-string. Write code that copies the contents of name to str if the C-string in name is not too big to fit in str.

Look at the following code. What value will be stored in s after the code executes? char name[10]; int s; strcpy(name, "Jimmy"); s = strlen(name);

True or False The strcpy function will overwrite the contents of its first string argument.

True or False C-string handling functions accept as arguments pointers to strings (array names or pointer variables), or literal strings.
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