Explain RNG differences, add FURI_HAL_RANDOM_MAX (flipperdevices#3565)

* Explain RNG differences, add FURI_HAL_RANDOM_MAX * Mark FURI_HAL_RANDOM_MAX unsigned Co-authored-by: あく <alleteam@gmail.com>
quen0n · Apr 7, 2024 · 16b34c6 · 16b34c6
1 parent 6b120a3
commit 16b34c6
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/targets/furi_hal_include/furi_hal_random.h b/targets/furi_hal_include/furi_hal_random.h
@@ -6,12 +6,16 @@
 extern "C" {
 #endif
 
+#define FURI_HAL_RANDOM_MAX 0xFFFFFFFFU
+
 /** Initialize random subsystem */
 void furi_hal_random_init(void);
 
 /** Get random value
+ * furi_hal_random_get() gives up to FURI_HAL_RANDOM_MAX
+ * rand() and random() give up to RAND_MAX
  *
- * @return     random value
+ * @return     32 bit random value (up to FURI_HAL_RANDOM_MAX)
  */
 uint32_t furi_hal_random_get(void);