Appendix C

Standard Library Header Files

The interface to the C++ Standard Library consists of 78 header files, 26 of which present the C standard library. It’s often difficult to remember which header files you need to include in your source code, so this material provides a brief description of the contents of each header, organized into eight categories:

• The C Standard Library
• Containers
• Algorithms, iterators, and allocators
• General utilities
• Mathematical utilities
• Exceptions
• I/O Streams
• Threading library

THE C STANDARD LIBRARY

The C++ Standard Library includes the entire C Standard Library. The header files are generally the same, except for two points:

• The header names are <cname> instead of <name.h>.
• All the names declared in the header files are in the std namespace.