From 34e2ef67f056bc781fdc4a115fb6aea9826686b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Costa?= <andre_miguel_costa@hotmail.com>
Date: Thu, 20 Feb 2025 05:20:03 +0100
Subject: [PATCH] feat(mem): add lv_reallocf (#7780)

---
 src/stdlib/lv_mem.c |  9 +++++++++
 src/stdlib/lv_mem.h | 10 ++++++++++
 2 files changed, 19 insertions(+)

diff --git a/src/stdlib/lv_mem.c b/src/stdlib/lv_mem.c
index ece0667834..41a002d745 100644
--- a/src/stdlib/lv_mem.c
+++ b/src/stdlib/lv_mem.c
@@ -136,6 +136,15 @@ void lv_free(void * data)
     lv_free_core(data);
 }
 
+void * lv_reallocf(void * data_p, size_t new_size)
+{
+    void * new = lv_realloc(data_p, new_size);
+    if(!new) {
+        lv_free(data_p);
+    }
+    return new;
+}
+
 void * lv_realloc(void * data_p, size_t new_size)
 {
     LV_TRACE_MEM("reallocating %p with %lu size", data_p, (unsigned long)new_size);
diff --git a/src/stdlib/lv_mem.h b/src/stdlib/lv_mem.h
index e136aad6ad..2b9e2defb6 100644
--- a/src/stdlib/lv_mem.h
+++ b/src/stdlib/lv_mem.h
@@ -105,6 +105,16 @@ void lv_free(void * data);
  */
 void * lv_realloc(void * data_p, size_t new_size);
 
+/**
+ * Reallocate a memory with a new size. The old content will be kept.
+ * In case of failure, the old pointer is free'd.
+ * @param data_p pointer to an allocated memory.
+ *               Its content will be copied to the new memory block and freed
+ * @param new_size the desired new size in byte
+ * @return pointer to the new memory, NULL on failure
+ */
+void * lv_reallocf(void * data_p, size_t new_size);
+
 /**
  * Used internally to execute a plain `malloc` operation
  * @param size      size in bytes to `malloc`