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Chapter 10: Problem 40

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

Short Answer

Expert verified
Answer: True

Step by step solution

01

Understanding strcpy function

The strcpy function is a standard library function in C and C++ programming languages, used to copy one string to another. It takes two string arguments: the destination string and the source string. The syntax for the strcpy function is: `strcpy(destination, source);`. The function copies the source string, including the null terminator, to the destination string.
02

Analyzing the behavior of strcpy

When the strcpy function is called with two string arguments (destination and source), it will overwrite the contents of the destination string with the contents of the source string. It starts copying from the first character of the source string to the first character of the destination string and continues until the null terminator of the source string is copied. As a result, the original contents of the destination string will be overwritten and replaced with the source string.
03

Evaluating the given statement

Based on our understanding of the strcpy function, it does overwrite the contents of its first string argument (destination string). It copies the characters of the source string, including the null terminator, to the destination string.
04

Conclusion

The given statement is True. The strcpy function will overwrite the contents of its first string argument (destination string) when copying the source string to the destination string.

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Most popular questions from this chapter

How do you compare string class objects?

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.

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 \(\left(^{\prime} e^{\prime}\right)\) ___

What header file must you include in a program using string functions such as strien and strcpy?

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