Re: freopen -- the easy way (was: Re: LYNX-DEV 4DOS)

[Kari E. Hurtta]

Larry W. Virden, x2487:
> To handle the case of the freopen failing, you might be able to use
> something like
> int oldstderrfd;
> FILE *newstderr;
> 
> if ((oldstderrfd = dup(fileno(stderr))) != -1 ) {
>       /* Do your code to do the freopen of stderr, etc.) */
> }
> 
> /* Now, when it's time to go back ... */
> if ( (stderr = fdopen(oldstderr,"w+") ) != NULL ) {
>       /* stderr should be back to where it was */
> }

You can't do that. Notice following:

#define stderr  (&__iob[2])

[That is from stdio.h of IRIX]

(&__iob[2]) can't be in left side of assigment.

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