This is a summary of ANSI and POSIX functions grouped by library. If you want an alphabetical list, please use the master index. Please refer to a manual for a complete list of functions available to you.

• ANSI standard library.
• POSIX library.
• Non Standard functions from CONIO.H
• Non ANSI Standard Unix functions
• User written functions.
• Variable length argument lists.

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ANSII Library headers

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assert.h

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ctype.h

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errno.h

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float.h

No functions are declared in stddef.h.

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limits.h

No functions are declared in stddef.h.

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locale.h

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math.h

Note

For some reason abs is in stdlib.h

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setjmp.h

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signal.h

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stdarg.h

See also vprintf vfprintf and vsprintf which all print the contents of a va_list

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stddef.h

No functions are declared in stddef.h.

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stdio.h

This header defines all the ANSI I/O functions that allow you to read and write to files and devices. Low level (non ANSI) functions are also available.

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stdlib.h

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string.h

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time.h

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POSIX functions start here....

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cpio.h

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dirent.h

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fcntl.h

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grp.h

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pwd.h

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sys/stat.h

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sys/times.h

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sys/types.h

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sys/utsname.h

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sys/wait.h

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tar.h

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termios.h

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unistd.h

It seems that this library contains headers for many functions that originally came with the ANSII standard library but did not have headers. My documentation for this POSIX library is incomplete.

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utime.h

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conio.h

Dos Specific functions in conio.h Not very portable as conio.h is NOT in the ANSI standard library and does not appear on the Sun or Linux machines.

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