fileno() map stream pointer to file descriptor	Function
	SYNOPSIS DESCRIPTION PARAMETERS RETURN VALUES CONFORMANCE MULTITHREAD SAFETY LEVEL PORTING ISSUES AVAILABILITY SEE ALSO

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SYNOPSIS

#include <stdio.h>

int fileno(FILE *stream);

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DESCRIPTION

The fileno() function returns the integer file descriptor associated with the stream.

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PARAMETERS

stream 

Points to the stream to be mapped to a file descriptor.

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RETURN VALUES

fileno() always returns the file descriptor associated with the stream; no values are reserved to indicate an error.

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CONFORMANCE

POSIX.1 (1996).

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MULTITHREAD SAFETY LEVEL

MT-Safe.

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PORTING ISSUES

None.

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AVAILABILITY

PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

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SEE ALSO

Functions:

fdopen(), fopen()

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PTC MKS Toolkit 10.5 Documentation Build 40.