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─────Run-Time Library───────────────────────────────────────────────────────
 
     The run-time library contains more than 550 functions and macros,
     divided into these categories:
 
     Category                   Contents
 
     Buffer manipulation        Manipulate areas of memory
     Character classification   Test individual characters
     Data conversion            Convert between strings and numbers
     File handling              Manipulate files and directories
     Full-screen text           Output text with position and color
     Graphics (fonts)           Manipulate graphical fonts
     Graphics (low-level)       Graphics primitives
     Graphics (presentation)    Presentation and charting routines
     I/O (streams)              Stream I/O routines
     I/O (low-level)            Low-level I/O routines
     I/O (console and port)     Console and port I/O routines
     Internationalization       Localization routines
     Math                       Math routines
     Memory allocation          Allocate, free, and reallocate memory
     Miscellaneous              Environment, error, and other
     Process control            Manipulate processes and programs
     QuickWin                   Turn DOS programs into simple Windows
                                programs
     Searching and sorting      Binary and linear search and quicksort
     String manipulation        String functions
     System calls               DOS and BIOS interrupt services
     Time                       Manipulate system time
     Variable-length args       Variable-length argument lists
     Virtual memory             Use virtual memory in DOS programs
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