[Issue 1756] New: comparing a constant to artihmetic expression with floating point types fails

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1756

           Summary: comparing a constant to artihmetic expression with
                    floating point types fails
           Product: D
           Version: 2.008
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: sven.stoenner at googlemail.com


the direct comparison of a constant to an arithmetic expression does not work
correctly when using variables:

// float
float a = 0.6f, 0.8f;
float c = a / b;
assert(c == 0.6f / 0.8f); // ok
assert(c == a / b); // fails
assert(0.75f == 0.6f / 0.8f); // ok
assert(0.75f == a / b); // fails

// double
double a = 0.6, b = 0.8;
double c = a / b;
assert(c == 0.6 / 0.8); // fails
assert(c == a / b); // fails
assert(0.75 == 0.6 / 0.8); // ok
assert(0.75 == a / b); // fails


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