/** * @file lv_utils.h * */ #ifndef LV_UTILS_H #define LV_UTILS_H #ifdef __cplusplus extern "C" { #endif /********************* * INCLUDES *********************/ #include #include /********************* * DEFINES *********************/ /********************** * TYPEDEFS **********************/ /********************** * GLOBAL PROTOTYPES **********************/ /** * Convert a number to string * @param num a number * @param buf pointer to a `char` buffer. The result will be stored here (max 10 elements) * @return same as `buf` (just for convenience) */ char *_lv_utils_num_to_str(int32_t num, char *buf); /** Searches base[0] to base[n - 1] for an item that matches *key. * * @note The function cmp must return negative if its first * argument (the search key) is less that its second (a table entry), * zero if equal, and positive if greater. * * @note Items in the array must be in ascending order. * * @param key Pointer to item being searched for * @param base Pointer to first element to search * @param n Number of elements * @param size Size of each element * @param cmp Pointer to comparison function (see #lv_font_codeCompare as a comparison function * example) * * @return a pointer to a matching item, or NULL if none exists. */ void *_lv_utils_bsearch(const void *key, const void *base, uint32_t n, uint32_t size, int32_t (*cmp)(const void *pRef, const void *pElement)); /********************** * MACROS **********************/ #ifdef __cplusplus } /* extern "C" */ #endif #endif