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Add pointer offset utility

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Abdelrahman Said
2026-01-11 23:46:12 +00:00
parent 1e536cc3ba
commit 9af9cedd51
2 changed files with 4 additions and 4 deletions
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7
src/base/array/array.c
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@@ -7,8 +7,7 @@
#include "../../common/aliases/aliases.h"
#include <stddef.h>
#define _offset_pointer(PTR, OFFSET) ((void *)((uptr)(PTR) + (OFFSET)))
#define _array_header(ARRAY) (ArrayHeader *)(_offset_pointer(ARRAY, (i64)sizeof(ArrayHeader) * -1))
#define _array_header(ARRAY) (ArrayHeader *)(wapp_pointer_offset(ARRAY, (i64)sizeof(ArrayHeader) * -1))
wapp_persist inline void _array_validate(const GenericArray array, u64 item_size);
@@ -55,7 +54,7 @@ void *_array_get(GenericArray array, u64 index, u64 item_size) {
ArrayHeader *header = _array_header(array);
wapp_runtime_assert(index < header->count, "`index` is out of bounds");
return _offset_pointer(array, header->item_size * index);
return wapp_pointer_offset(array, header->item_size * index);
}
void _array_set(GenericArray array, u64 index, void *value, u64 item_size) {
@@ -86,7 +85,7 @@ void _array_extend_capped(GenericArray dst, const GenericArray src, u64 item_siz
u64 remaining_capacity = dst_header->capacity - dst_header->count;
u64 copy_count = src_header->count < remaining_capacity ? src_header->count : remaining_capacity;
void *dst_ptr = _offset_pointer(dst, dst_header->count * dst_header->item_size);
void *dst_ptr = wapp_pointer_offset(dst, dst_header->count * dst_header->item_size);
memcpy(dst_ptr, src, copy_count * src_header->item_size);
dst_header->count += copy_count;
}

1
src/common/misc/misc_utils.h
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@@ -48,6 +48,7 @@ BEGIN_C_LINKAGE
)
#define wapp_is_power_of_two(NUM) ((NUM & (NUM - 1)) == 0)
#define wapp_pointer_offset(PTR, OFFSET) ((void *)((uptr)(PTR) + (OFFSET)))
#ifdef WAPP_PLATFORM_CPP
END_C_LINKAGE