IOStreams and Locales are two of the most important, eagerly-awaited components of the ISO/ANSI C++ standard -- and this is the first book to cover them exclusively, and in great depth. The authors explain the problems that IOStreams and Locales solve; then present a wide range of examples and techniques, from simple to sophisticated. The authors introduce concepts, component architecture, standards-compliant code, and practical patterns of use. Coverage includes: key differences between standard IOStreams and the non-standard versions that preceded it; how to extend the Locales component for more effective internationalization; and more. The book also includes a complete, authoritative class reference. Experienced developers can use the book as a start-to-finish learning tool, or as a handy "just-in-time" reference for specific techniques.