Hello, I know POSIX compliant code should use STDIN_FILENO,
STDOUT_FILENO and STDERR_FILENO instead of the magic numbers 0,1 and 2.

But my question is:
Does POSIX guarantees that the value of the constants (or whatever they
are) STDIN_FILENO, STDOUT_FILENO and STDERR_FILENO are 0,1 and 2
respectively?

TIA

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Neroku wrote:
> Hello, I know POSIX compliant code should use STDIN_FILENO,
> STDOUT_FILENO and STDERR_FILENO instead of the magic numbers 0,1 and 2.
>
> But my question is:
> Does POSIX guarantees that the value of the constants (or whatever they
> are) STDIN_FILENO, STDOUT_FILENO and STDERR_FILENO are 0,1 and 2
> respectively?

http://www.opengroup.org/onlinepubs...s/unistd.h.html

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