This module currently supports removing but not inserting at a specified index, so this adds that. Inserting a value moves all existing data beyond index over one element. --- ccan/darray/darray.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/ccan/darray/darray.h b/ccan/darray/darray.h index 75112419..fca20b8a 100644 --- a/ccan/darray/darray.h +++ b/ccan/darray/darray.h @@ -56,6 +56,7 @@ * * void darray_append(darray(T) arr, T item); * void darray_prepend(darray(T) arr, T item); + * void darray_insert(darray(T) arr, size_t index, T item); * void darray_push(darray(T) arr, T item); // same as darray_append * * Insertion (multiple items): @@ -169,6 +170,12 @@ typedef darray(unsigned long) darray_ulong; memmove((arr).item+1, (arr).item, ((arr).size-1)*sizeof(*(arr).item)); \ (arr).item[0] = (__VA_ARGS__); \ } while(0) +#define darray_insert(arr, index, ...) do { \ + size_t __index = index; \ + darray_resize(arr, (arr).size+1); \ + memmove((arr).item+__index+1, (arr).item+__index, ((arr).size-__index-1)*sizeof(*(arr).item)); \ + (arr).item[__index] = (__VA_ARGS__); \ + } while(0) #define darray_push(arr, ...) darray_append(arr, __VA_ARGS__) -- 2.14.1 _______________________________________________ ccan mailing list ccan@lists.ozlabs.org https://lists.ozlabs.org/listinfo/ccan