Files
mars-libowfat/array/iarray_get.c
2025-01-20 18:40:47 +00:00

13 lines
383 B
C

#include <libowfat/iarray.h>
void* iarray_get(iarray* ia,size_t pos) {
size_t index;
iarray_page* p=ia->pages[pos%(sizeof(ia->pages)/sizeof(ia->pages[0]))];
pos /= sizeof(ia->pages)/sizeof(ia->pages[0]);
for (index=0; p; p=p->next, index+=ia->elemperpage) {
if (pos>=index && pos<index+ia->elemperpage)
return &p->data[(pos-index)*ia->elemsize];
}
return 0;
}