g77 compiles illegal code in testsuite?

[Steven G. Kargl]

Bud Davis said:
> | I'm running the Fortran 77 code in gcc-testsuite-3.3.tar.bz2
> | through g95 and I've found that 20000601-2.f contains
> | illegal code for Fortran 95 and probably Fortran 77.  I don't
> | have the Fortran 77 standard handy, but I believe the code is
> | illegal; yet g77 compiles the code without warning or error. 
> 

[Table of intrinsics snipped]

> In my interpretation, the code in question is not valid.
> MAX is the generic name for MAX0,AMAX1, and DMAX1, 

This is correct.

> not for AMAX0 which is the specfic intrinisic needed here.

Actually, I beleive AMAX0 would also be wrong.  The arguments
of AMAX0 must have the same type.

>   
> Maybe g77 should issue a warning (when invoked with -fpedantic) ?
> 

It's Toon's call, but I think g77 should issue an error and
abort.  The g77 info contains a -fno-ugly-args option.  I
would think you should need -fugly-args to compile the code
in question.

> Of course, IMHO, g95 should be backwards compatable with g77 :)

This may not happen, because Fortran 95 has deleted a few
features from Fortran 77.

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/