Peter Gerwinski wrote:
I thought that GPC did not support varargs. In fact, I was hoping that it would support the VAX Pascal syntax for doing so. What is the status of variable arguments for GPC?
It does support `ellipsis' parameters to call functions with varargs written in C. We have not (yet!;) implemented a portable mechanism to access them.
IMHO, it would be reasonable to implement the VAX Pascal syntax into GPC rather than inventing a new method. If you tell me about the VAX Pascal syntax for accessing varargs, it will enable me to do this.
[stuff deleted]
However: Please help me to with VAX Pascal vararg syntax! I don't have a VAX, and I don't have the money to buy one, so I need example programs with descriptions what they are intended to do, etc. (you know).
Unfortunately, it's been about 7 years since I had access to the compiler. However, I saw a VAX Pascal book in a bookstore and I'm going to pick it up this weekend. The online help I have seen for VAX Pascal did not go into much detail on syntax.
The VAX approach, as I remember it, used an array of parameters.
The VAX Pascal language had two kinds of arrays: ARRAY and VARYING. The varying kind worked a bit like Turbo Pascal strings. There was a maximum size and a current length. I think the varargs mechanism was similar to the VARYING arrays.
You could define strings as:
TYPE string = VARYING[1..255] of CHAR;
I'll get back to you on this.
Greetings,
PeterDipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]