Re: "standard" C calling convention?

> Well, many OS have somewhat of a standard, and C programs on that OS
> may or may not use it. C requires the ability to call with a variable
> number of arguments, which restricts somewhat the allowable calling
> conventions. (x86 has hardware support for a calling convention in
> which the called routine removes arguments from the stack. This is
> sometimes called the Pascal convention, and doesn't work well for C.)


C requires that ability only for calls to functions that are declared to
have a variable number of arguments. On a PowerPC, calling f (3) will
generate very different code if f is declared to take one argument or
declared to take a variable number of arguments.

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