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ID: csharp-best-practices/comparison-nan
Language: C#
Severity: Info
Category: Best Practices
Description
Using a comparison with float.NaN or double.NaN also returns false. If you want to check the validity of a number, use float.isNaN or double.isNaN.
Non-Compliant Code Examples
class MyClass {
public void myMethod(float v, double d)
{
if (float.NaN == v) {
}
if(double.NaN == d) {
}
}
}
class MyClass {
public void myMethod(float v, double d)
{
if (v == float.NaN) {
}
if(d == double.NaN) {
}
}
}
Compliant Code Examples
class MyClass {
public void myMethod(float v, double d)
{
if (float.isNan(f)) {
}
if(double.isNan(f)) {
}
}
}
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