diff options
Diffstat (limited to 'firmware/export')
| -rw-r--r-- | firmware/export/general.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/firmware/export/general.h b/firmware/export/general.h index 8da4a0a..16c8240 100644 --- a/firmware/export/general.h +++ b/firmware/export/general.h @@ -72,4 +72,19 @@ char *create_datetime_filename(char *buffer, const char *path, bool unique_time); #endif /* CONFIG_RTC */ +/*** + ** Compacted pointer lists + ** + ** N-length list requires N+1 elements to ensure NULL-termination. + **/ + +/* Find a pointer in a pointer array. Returns the addess of the element if + found or the address of the terminating NULL otherwise. This can be used + to bounds check and add items. */ +void ** find_array_ptr(void **arr, void *ptr); + +/* Remove a pointer from a pointer array if it exists. Compacts it so that + no gaps exist. Returns 0 on success and -1 if the element wasn't found. */ +int remove_array_ptr(void **arr, void *ptr); + #endif /* GENERAL_H */ |