Changeset 473 for trunk/libs/mini-libc/stdlib.c

Timestamp:

Aug 21, 2018, 6:01:01 PM (6 years ago)

Author:

alain

Message:

Fix several GCC warning related to the -Wextra compilation option.

File:

• trunk/libs/mini-libc/stdlib.c (modified) (3 diffs)

trunk/libs/mini-libc/stdlib.c

@@ -28 +28 @@
 #include <almosmkh.h>
 #include <stdio.h>
+
+////////////////////////////////////////////////////////////////////////////////////////// 
+//           Global variables                   
+//////////////////////////////////////////////////////////////////////////////////////////
+
+unsigned int  rand_seed_value = 1;   // set by srand() , used by rand()
 
 //////////////////////////
@@ -121 +127 @@
     get_cycle( &cycle );
 
-    unsigned int x = (unsigned int)cycle;
-
-    if ((x & 0xF) > 7) 
-    {
-        return (x*x & 0xFFFF);
+    unsigned int x = (unsigned int)cycle * rand_seed_value;
+
+    if ((x & 0xFF) > 0x7F) 
+    {
+        return (x*x & RAND_MAX);
     }
     else 
     {
-        return (x*x*x & 0xFFFF);
+        return (x*x*x & RAND_MAX);
     }
 }
@@ -136 +142 @@
 void srand( unsigned int seed )
 {
-    printf("\n[ERROR] in %s : not implemented yet : do nothing\n", __FUNCTION__ );
+    rand_seed_value = seed;
 }