Titlebook: Exploring C++ 11; Ray Lischner Book 20132nd edition Ray Lischner 2013

多產(chǎn)魚

Reading C Code,I suspect you already have some knowledge of C++. Maybe you already know C, Java, Perl, or other C-like languages. Maybe you know so many languages that you can readily identify common elements. Let’s test my hypothesis. Take a few minutes to read Listing 2-1, then answer the questions that follow it.

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For Loops,Explorations 2 and 3 show some simple . loops. This Exploration introduces the . loop’s big brother, the . loop.

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Formatted Output,In Exploration 4, you used tab characters to line up output neatly. Tabs are useful but crude. This Exploration introduces some of the features that C++ offers to format output nicely, such as setting the alignment, padding, and width of output fields.

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Algorithms and Iterators,The previous Exploration introduced vectors and iterators using . to sort a vector of integers. This Exploration examines iterators in more depth and introduces generic algorithms, which perform useful operations on iterators.

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Increment and Decrement,The previous Exploration introduced the increment (.) operator to advance an iterator. This operator works on numeric types as well. Not surprisingly, it has a decrement counterpart: .. This Exploration takes a closer look at these operators, which appear so often, they are part of the language name.

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Conditions and Logic,You first met the . type in Exploration 2. This type has two possible values: . and ., which are reserved keywords (unlike in C). Although most Explorations have not needed to use the . type, many have used logical expressions in loop and .-statement conditions. This Exploration examines the many aspects of the . type and logical operators.

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