asked on

foreach - supported in C coding language?

I'm writing a program in C on the PC. I want to loop as a function of the number of array elements in the same way I'm used to doing in Unix c-shell scripts (an implied counter):

set NameList = ( Joe Bob Karen Larry )
foreach Name ( $NameList )
processing...
end

-- or --

foreach Name ( Joe Bob Karen Larry )
processing...
end

Can I do this, or do I have to know the size of the array in advance and do it like,

#define NAME_SIZE 4
int i;
for(i = 0; i < NAME_SIZE; i++)
{
processing...
}

If it's not supported, can you suggest the code to implement a C function that would work like foreach?

ozo

How do you declare the array?

rbr

Try this
#define NAME_SIZE 4
char *NameList[NAME_SIZE]={"Joe","Bob","Karen","Larry"};

for (i=0;i<NAME_SIZE;i++) {
.... Do what ever you want
.... For accessing the array use NameList[i]

}

ahoffmann

char *NameList[NAME_SIZE]={"Joe","Bob","Karen","Larry",'\0'};
int i=0;
while (NameList[i]!='\0') {
/* processing... */
i++;
}

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ozo

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lhgarrett

ASKER

To rbr:

Thanks, but the idea I was looking for was a way of not having to count the elements in the array.

lhgarrett

ASKER

> while (NameList[i]!='\0') {
This will work, however...

> for( i=0;i<sizeof(NameList)/sizeof(NameList[0]);i++ )
This actually is closer to what I was looking for!

Points to ozo this time, but thanks to both of you!!!