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Chapter 11: Problem 56

True or False If an anonymous union is defined globally (outside all functions), it must be declared static.

Short Answer

Expert verified
Answer: Yes, it is necessary to declare global anonymous unions as static to limit their scope to the file they are declared in and prevent accidental access or modification from other files.

Step by step solution

01

Understand anonymous unions

An anonymous union is a union without a name, which means you do not need to use a variable name to access its members. The members can be directly accessed using the dot (.) or arrow (->) operators depending on whether it's a basic union or a pointer to a union.
02

Analyze the requirement for global anonymous unions to be declared static

When an anonymous union is declared globally (outside all functions), it becomes a global variable. As a general rule, global variables (named or anonymous) should be declared static to limit their scope to the file they are declared in, to prevent accidental access or modification from other files.
03

Determine if the statement is true or false

Based on the analysis in step 2, the statement is true. When an anonymous union is defined globally, it should be declared static to prevent accidental access or modification from other files.

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Most popular questions from this chapter

Each of the following declarations, programs, and program segments has errors. Locate as many as you can. struct { int x; float y; };

Look at the following structure declaration. struct Point { int x; int y; }; Write statements that A) define a Point structure variable named center B) assign 12 to the x member of center C) assign 7 to the y member of center D) display the contents of the x and y members of center

What is a primitive data type?

What is the difference between a union and a structure?

Before a structure variable can be created, the structure must be _________.
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