SERVER-470 improve JS rand()

2010-01-04 17:28:42 -08:00
parent 35d800321b
commit e2bac039d1
2 changed files with 2 additions and 2 deletions
--- a/shell/utils.cpp
+++ b/shell/utils.cpp
@@ -494,7 +494,7 @@ namespace mongo {
        
        BSONObj JSRand( const BSONObj &a ) {
            uassert( 12519, "rand accepts no arguments", a.nFields() == 0 );
-            return BSON( "" << double( rand_r( &_randomSeed ) ) / RAND_MAX );
+            return BSON( "" << double( rand_r( &_randomSeed ) ) / ( double( RAND_MAX ) + 1 ) );
        }
        
        void installShellUtils( Scope& scope ){