C Call OpenVMS

[Peter Bateman]

Hi John:
 
In  CEDIT I would code a printf for each parameter. to check that they have been passed correctly.
 
 
BTW:-
 
Powerhouse pads with blanks for unequal length character string comparisons.
In C, I like to null terminate strings. I do not want to compare blank with the
null character. So I make my comparisons against a substring of the string coming
back from C. You probably can get away with it if the C code does modify the original
PowerHouse string value and you are testing for a change in the Powerhouse string value.
 
In your case the null is in position 2. 
 
if "Y" <> t_prod_ok[1:1] 
then display t_err_msg
end

instead of 
 
if t_prod_ok <> "Y" 
then display t_err_msg
end

Regards,
Peter

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