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Chapter 11: Problem 37

T F A structure declaration does not define a variable.

Short Answer

Expert verified
# Answer True (T)

Step by step solution

01

Understanding Structure Declaration

A structure declaration is a user-defined data type in C/C++ programming languages, which allows grouping variables of different data types under a single name. It is useful for organizing complex data and representing objects in a program. A structure declaration consists of the keyword 'struct' followed by the structure name and a block enclosed in curly brackets, containing the data member declarations.
02

Examining if Structure Declaration Defines a Variable

A structure declaration by itself only defines a new data type and does not create any instance (variable) of that data type. To define a variable with the structure data type, we must declare it explicitly using the structure name or using a structure variable. In other words, a structure declaration tells the compiler how the new data type should look, but it doesn't create any variable.
03

Example of Structure Declaration and Variable Definition

Consider the following example: ```cpp // Structure declaration struct Point { int x; int y; }; // Variable definition using the structure data type struct Point point1, point2; // or alternatively Point point1, point2; ``` In this example, the structure declaration 'struct Point' only defines a new data type named 'Point', which groups two integer variables 'x' and 'y'. It does not create any variable. The actual variables 'point1' and 'point2' are defined separately using the structure data type 'struct Point'.
04

Conclusion

Based on the analysis, a structure declaration does not directly define a variable. Instead, it defines a new data type that can be later used to create variables of that data type. Hence, the statement in the exercise is True (T).

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Most popular questions from this chapter

T F You may skip members in a structure’s initialization list.

T F An anonymous union has no name.

T F The indirection operator has higher precedence than the dot operator.

T F The structure pointer operator does not automatically dereference the structure pointer on its left.

In the definition of a structure variable, the _________ is placed before the variable name, just like the data type of a regular variable is placed before its name.
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