Strings, Stream Classes, and Regular Expressions

We will cover the following recipes in this chapter:

• Creating, concatenating, and transforming strings
• Trimming whitespace from the beginning and end of strings
• Getting the comfort of std::string without the cost of constructing std::string objects
• Reading values from user input
• Counting all words in a file
• Formatting your output with I/O stream manipulators
• Initializing complex objects from file input
• Filling containers from std::istream iterators
• Generic printing with std::ostream iterators
• Redirect output to files for specific code sections
• Creating custom string classes by inheriting from std::char_traits
• Tokenizing input with the regular expression library
• Comfortably pretty printing numbers differently per context on the fly
• Catching readable exceptions from std::iostream errors

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