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Chapter: 2 / Q: e.g2.3
It is possible to initialize a variable to the value of one defined earlier in the same definition
Chapter: 2 / Q: e.g2.2.1
One way in which initialization is a complicated topic is that the language defines several different forms of initialization. For example, we can use any of the following four different ways to define an int variable named units_sold and initialize it to 0
Chapter: 2 / Q: e.g2.5
When used with variables of built-in type, this form of initialization has one important property: The compiler will not let us list initialize variables of built-in type if the initializer might lead to the loss of information
Chapter: 2 / Q: e.g2.2.1
Most classes let us define objects without explicit initializers. Such classes supply an appropriate default value for us. For example, as we’ve just seen, the library string class says that if we do not supply an initializer, then the resulting string is the empty string
Chapter: 2 / Q: 2.9
Explain the following definitions. For those that are illegal, explain what’s wrong and how to correct it
Chapter: 2 / Q: 2.10
What are the initial values, if any, of each of the following variables
Chapter: 2 / Q: e.g2.2
To obtain a declaration that is not also a definition, we add the extern keyword and may not provide an explicit initializer
Chapter: 2 / Q: 2.11
Explain whether each of the following is a declaration or a definition
Chapter: 2 / Q: 2.12
Which, if any, of the following names are invalid
Chapter: 2 / Q: e.g2.2.4
The same name can refer to different entities in different scopes. Names are visible from the point where they are declared until the end of the scope in which the declaration appears
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