Update LVGL to v9.1.0

1 files changed, 118 insertions, 0 deletions

diff --git a/lib/lvgl/src/stdlib/lv_string.h b/lib/lvgl/src/stdlib/lv_string.h
new file mode 100644
index 00000000..745cd49e
--- /dev/null
+++ b/lib/lvgl/src/stdlib/lv_string.h
@@ -0,0 +1,118 @@
+/**
+ * @file lv_stringn.h
+ *
+ */
+
+#ifndef LV_STRING_H
+#define LV_STRING_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../lv_conf_internal.h"
+#include <stdint.h>
+#include <stddef.h>
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * @brief Copies a block of memory from a source address to a destination address.
+ * @param dst Pointer to the destination array where the content is to be copied.
+ * @param src Pointer to the source of data to be copied.
+ * @param len Number of bytes to copy.
+ * @return Pointer to the destination array.
+ * @note The function does not check for any overlapping of the source and destination memory blocks.
+ */
+void * lv_memcpy(void * dst, const void * src, size_t len);
+
+/**
+ * @brief Fills a block of memory with a specified value.
+ * @param dst Pointer to the destination array to fill with the specified value.
+ * @param v Value to be set. The value is passed as an int, but the function fills
+ *          the block of memory using the unsigned char conversion of this value.
+ * @param len Number of bytes to be set to the value.
+ */
+void lv_memset(void * dst, uint8_t v, size_t len);
+
+/**
+ * @brief Move a block of memory from source to destination
+ * @param dst Pointer to the destination array where the content is to be copied.
+ * @param src Pointer to the source of data to be copied.
+ * @param len Number of bytes to copy
+ * @return Pointer to the destination array.
+ */
+void * lv_memmove(void * dst, const void * src, size_t len);
+
+/**
+ * Same as `memset(dst, 0x00, len)`.
+ * @param dst pointer to the destination buffer
+ * @param len number of byte to set
+ */
+static inline void lv_memzero(void * dst, size_t len)
+{
+    lv_memset(dst, 0x00, len);
+}
+
+/**
+ * @brief Computes the length of the string str up to, but not including the terminating null character.
+ * @param str Pointer to the null-terminated byte string to be examined.
+ * @return The length of the string in bytes.
+ */
+size_t lv_strlen(const char * str);
+
+/**
+ * @brief Copies up to dest_size characters from the string pointed to by src to the character array pointed to by dst.
+ * @param dst Pointer to the destination array where the content is to be copied.
+ * @param src Pointer to the source of data to be copied.
+ * @param dest_size Maximum number of characters to be copied to dst, including the null character.
+ * @return A pointer to the destination array, which is dst.
+ */
+char * lv_strncpy(char * dst, const char * src, size_t dest_size);
+
+/**
+ * @brief Copies the string pointed to by src, including the terminating null character,
+ *        to the character array pointed to by dst.
+ * @param dst Pointer to the destination array where the content is to be copied.
+ * @param src Pointer to the source of data to be copied.
+ * @return A pointer to the destination array, which is dst.
+ */
+char * lv_strcpy(char * dst, const char * src);
+
+/**
+ * @brief  This function will compare two strings without specified length.
+ * @param s1    pointer to the first string
+ * @param s2    pointer to the second string
+ * @return      the difference between the value of the first unmatching character.
+ */
+int32_t lv_strcmp(const char * s1, const char * s2);
+
+/**
+ * @brief Duplicate a string by allocating a new one and copying the content.
+ * @param src Pointer to the source of data to be copied.
+ * @return A pointer to the new allocated string. NULL if failed.
+ */
+char * lv_strdup(const char * src);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_STRING_H*/