Grabbing "n" arguments in a function
andre
andre at targon.UUCP
Tue May 8 01:32:07 AEST 1990
In article <1990Apr22.010146.5001 at utzoo.uucp> henry at utzoo.uucp (Henry Spencer) writes:
]In article <744 at tmiuv0.uucp> rick at tmiuv0.uucp writes:
]>What's the most portable way for a function to receive an arbitrary list of
]>arguments? ...
]
]The *only* maximally portable way to do this is to use the <stdargs.h>
]facility in ANSI C. Using <varargs.h>, found in many current systems,
[ things you should not do ]
There is one more method though,
accept an 'argv' like array as the argument to your function.
as in,
int number_args (a)
char **a;
{
int n;
for (n = 0 ; a[n] ; n++)
;
return n;
}
And if you malloc and realloc the char * array, this size can
change at runtime, while the varargs approach is fixed at compile time.
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