| hashIndex |
(String name, Pointer dest [, int defined]) |
yoix.util |
| |
Returns the index where
name
belongs in
dest,
which often is a
Dictionary,
or
-1
if there is no definition of
name
in
dest
and there is no room for a new definition.
If the optional
defined
argument is non-zero then
hashIndex
will return
-1
whenever
name
is not currently defined in
dest,
even if there is room for a new definition.
| |
| Example: |
The program
import yoix.*.*;
Dictionary item[15] = {
String id = "Lounge Chair";
int count = 100;
double price = 123.50;
};
index = hashIndex("id", item);
printf("%s\n", item[index]);
printf(" id is stored at index %d\n", hashIndex("id", item));
printf(" count is stored at index %d\n", hashIndex("count", item));
printf(" price is stored at index %d\n", hashIndex("price", item));
if (hashIndex("supplier", item, true) < 0) {
printf("=== supplier is not currently defined===\n");
item.supplier = "unknown";
}
printf(" supplier is now stored at index %d\n", hashIndex("supplier", item));
uses
hashIndex
to locate elements defined in a dictionary and prints
Lounge Chair
id is stored at index 10
count is stored at index 13
price is stored at index 6
=== supplier is not currently defined===
supplier is now stored at index 11
on standard output.
| | |
| Return: |
int
| | |
| See Also: |
indexOf,
indexOfObject,
lastIndexOf,
lastIndexOfObject
|
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Yoix is a registered trademark of AT&T Inc.
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