java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/NumericOverflow.java

// overflows in const expressions


class c {
 // @*#$& ! references do not work in JRE
 static final long LONG_MIN_VALUE = 0x8000000000000000L;
 static final long LONG_MAX_VALUE = 0x7fffffffffffffffL;
 static final int INTEGER_MIN_VALUE = 0x80000000;
 static final int INTEGER_MAX_VALUE = 0x7fffffff;
 static final float FLOAT_MIN_VALUE = 1.4e-45f;
 static final float FLOAT_MAX_VALUE = 3.4028235e+38f;
 static final double DOUBLE_MIN_VALUE = 4.9e-324;
 static final double DOUBLE_MAX_VALUE = 1.7976931348623157e+308;

 void f() {
   float f1 = <warning descr="Numeric overflow in expression">1.0f / 0.0f</warning>;
   f1 = <warning descr="Numeric overflow in expression">FLOAT_MAX_VALUE + FLOAT_MAX_VALUE</warning>;
   f1 = <warning descr="Numeric overflow in expression">FLOAT_MAX_VALUE * 2</warning>;
   f1 = <warning descr="Numeric overflow in expression">2 / FLOAT_MIN_VALUE</warning>;
   f1 = FLOAT_MIN_VALUE + 1;
   f1 = - FLOAT_MIN_VALUE;
   f1 = -FLOAT_MAX_VALUE;
   System.out.println(f1);

   double d1 = <warning descr="Numeric overflow in expression">DOUBLE_MAX_VALUE - -DOUBLE_MAX_VALUE</warning>;
   d1 = DOUBLE_MAX_VALUE + 1;
   d1 = <warning descr="Numeric overflow in expression">2 * DOUBLE_MAX_VALUE</warning>;
   d1 = <warning descr="Numeric overflow in expression">2 / DOUBLE_MIN_VALUE</warning>;
   d1 = <warning descr="Numeric overflow in expression">2 / 0.0d</warning>;
   d1 = <warning descr="Numeric overflow in expression">2 / 0.0</warning>;
   System.out.println(d1);


   int i1 = <warning descr="Numeric overflow in expression">INTEGER_MAX_VALUE + 1</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MAX_VALUE - 1 + 2</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MAX_VALUE - INTEGER_MIN_VALUE</warning>;
   i1 = <warning descr="Numeric overflow in expression">-INTEGER_MIN_VALUE</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MIN_VALUE - 1</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MIN_VALUE - INTEGER_MAX_VALUE</warning>;
   i1 = INTEGER_MIN_VALUE + INTEGER_MAX_VALUE;
   i1 = - INTEGER_MAX_VALUE;
   i1 = - -INTEGER_MAX_VALUE;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MIN_VALUE * -1</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MIN_VALUE * 2</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MAX_VALUE * -2</warning>;
   i1 = INTEGER_MAX_VALUE * -1;
   i1 = <warning descr="Numeric overflow in expression">2 / 0</warning>;
   i1 = <warning descr="Numeric overflow in expression">INTEGER_MIN_VALUE / -1</warning>;
   System.out.println(i1);

   long l1 = <warning descr="Numeric overflow in expression">LONG_MAX_VALUE + 1</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MAX_VALUE - 1 + 2</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MAX_VALUE - LONG_MIN_VALUE</warning>;
   l1 = <warning descr="Numeric overflow in expression">-LONG_MIN_VALUE</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE - 1</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE - LONG_MAX_VALUE</warning>;
   l1 = LONG_MIN_VALUE + LONG_MAX_VALUE;
   l1 = - LONG_MAX_VALUE;
   l1 = - -LONG_MAX_VALUE;
   l1 = <warning descr="Numeric overflow in expression">-INTEGER_MIN_VALUE</warning>;
   l1 =  -1L + INTEGER_MIN_VALUE;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE * INTEGER_MIN_VALUE</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE * -1</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE * 2</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MAX_VALUE * -2</warning>;
   l1 = INTEGER_MIN_VALUE * -1L;
   l1 = <warning descr="Numeric overflow in expression">2 / 0L</warning>;
   l1 = <warning descr="Numeric overflow in expression">2 % 0L</warning>;
   l1 = <warning descr="Numeric overflow in expression">LONG_MIN_VALUE / -1</warning>;

   l1 = <warning descr="Numeric overflow in expression">30 * 24 * 60 * 60 * 1000</warning>; 
   l1 = <warning descr="Numeric overflow in expression">30000000 * 243232323</warning> 
        * (<warning descr="Numeric overflow in expression">LONG_MAX_VALUE +3</warning>) / 5; 
   System.out.println(l1);


   
   }
   
    private static final long MILLIS_PER_DAY = 24 * 3600 * 1000;
    private static final long _7DAYS = 7 * MILLIS_PER_DAY;
    private static final long _30DAYS = 30 * MILLIS_PER_DAY;
    private static final long _1000DAYS = 1000 * MILLIS_PER_DAY;
    {
       System.out.println(_1000DAYS + _30DAYS + _7DAYS);
    }
    int iii = <warning descr="Numeric overflow in expression">2 % 0</warning>;
}