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%module example
%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_ary, int i, VALUE key, VALUE val) {
Check_Type($input, T_HASH);
$1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));
$2 = NULL;
$3 = NULL;
if ($1 > 0) {
$2 = (char **) malloc($1*sizeof(char *));
$3 = (int *) malloc($1*sizeof(int));
keys_ary = rb_funcall($input, rb_intern("keys"), 0, NULL);
for (i = 0; i < $1; i++) {
key = rb_ary_entry(keys_ary, i);
val = rb_hash_aref($input, key);
Check_Type(key, T_STRING);
Check_Type(val, T_FIXNUM);
$2[i] = StringValuePtr(key);
$3[i] = NUM2INT(val);
}
}
}
%typemap(freearg) (int nattributes, const char **names, const int *values) {
free((void *) $2);
free((void *) $3);
}
%inline %{
void setVitalStats(const char *person, int nattributes, const char **names, const int *values) {
int i;
printf("Name: %s\n", person);
for (i = 0; i < nattributes; i++) {
printf(" %s => %d\n", names[i], values[i]);
}
}
%}
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