Answer:
A type cast should not be used to override a const or volatile declaration. Overriding these type modifiers can cause the program to fail to run correctly.
A type cast should not be used to turn a pointer to one type of structure or data type into another. In the rare events in which this action is beneficial, using a union to hold the values makes the programmer’s intentions clearer.
Reference:
II.6: When should the volatile modifier be used?
II.8: When should the const modifier be used?
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CONTENTS
- Can static variables be declared in a header file? (1)
- I.1: What is a local block? (1)
- I.10: Can an array be an lvalue? (1)
- I.11: What is an rvalue? (1)
- I.13: What is the difference between ++var and var++? (1)
- I.2: Should variables be stored in local blocks? (1)
- I.3: When is a switch statement better than multiple if statements? (1)
- I.4: Is a default case necessary in a switch statement? (1)
- I.5: Can the last case of a switch statement skip including the break? (1)
- I.6: Other than in a for statement (1)
- I.7: How can you tell whether a loop ended prematurely? (1)
- I.8: What is the difference between goto and longjmp() (1)
- I.9: What is an lvalue? (1)
- II.1: Where in memory are my variables stored? (1)
- II.10: How can you determine the maximum value that a numeric variable can hold? (1)
- II.11: Are there any problems with performing mathematical operations on different variable types? (1)
- II.12: What is operator promotion? (1)
- II.13: When should a type cast be used? (1)
- II.14: When should a type cast not be used? (1)
- II.15: Is it acceptable to declare/define a variable in a C header? (1)
- II.16: What is the difference between declaring a variable and (1)
- II.3: What is page thrashing? (1)
- II.4: What is a const pointer? (1)
- II.5: When should the register modifier be used? Does it (1)
- II.6: When should the volatile modifier be used? (1)
- II.7: Can a variable be both const and volatile? (1)
- II.8: When should the const modifier be used? (1)
- II.9: How reliable are floating-point comparisons? (1)
- What is the benefit of using const for declaring constants? (1)
- when is the comma (1)
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- II.5: When should the register modifier be used? D...
- II.6: When should the volatile modifier be used?
- II.7: Can a variable be both const and volatile?
- II.8: When should the const modifier be used?
- II.9: How reliable are floating-point comparisons?
- II.10: How can you determine the maximum value tha...
- II.11: Are there any problems with performing math...
- II.12: What is operator promotion?
- II.13: When should a type cast be used?
- II.14: When should a type cast not be used?
- II.15: Is it acceptable to declare/define a variab...
- II.16: What is the difference between declaring a ...
- II.17: Can static variables be declared in a heade...
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