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double i = Double.MIN_VALUE; double j = Double.MAX_VALUE; if ((i < Float.MIN_VALUE) || (i > Float.MAX_VALUE) || (j < Float.MIN_VALUE) || (j > Float.MAX_VALUE)) { throw new ArithmeticException ("Value is out of range"); } float b = (float) i; float c = (float) j; //other operations |
Exceptions
NUM??NUM15-EX0: Java's narrowing conversions are both well-defined and portable; knowledgeable programmers can intentionally apply such conversions in contexts where their output is both expected and reasonable. Consequently, narrowing conversions are permitted when the code contains comments that document both the use of narrowing conversions and that the potential for truncation has been anticipated. A suitable comment might read: "// Deliberate narrowing cast of i; possible truncation OK"
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C Secure Coding Standard: INT31-C. Ensure that integer conversions do not result in lost or misinterpreted data
C Secure Coding Standard: , FLP34-C. Ensure that floating point conversions are within range of the new type
C++ Secure Coding Standard: INT31-CPP. Ensure that integer conversions do not result in lost or misinterpreted data
C++ Secure Coding Standard: , FLP34-CPP. Ensure that floating point conversions are within range of the new type
MITRE CWE: CWE-681 "Incorrect Conversion between Numeric Types,"
MITRE CWE: CWE-197 "Numeric Truncation Error"
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