FIX: Warning C4056 Generated When /Op Option is Used

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This article was previously published under Q120218

SYMPTOMS

The following warning is generated when the sample code listed in the More Information section below is compiled with the option /Op and the warning level set to 3 or higher:

warning C4056 : overflow in floating-point constant arithmetic

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RESOLUTION

Ignore the warning as it is generated incorrectly. Alternatively, you can suppress the warning by using the /W2 option.

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STATUS

This bug was corrected in Microsoft Visual C++, version 6.0.

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MORE INFORMATION

Sample Code to Reproduce Problem

/* Compile options needed:   /Op /W3
*/ 

void main()
{
   double i;
   i = -1.0;
}

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APPLIES TO

Microsoft Visual C++ 2.0 Professional Edition
Microsoft Visual C++ 4.0 Standard Edition
Microsoft Visual C++ 4.1 Subscription
Microsoft Visual C++ 4.2 Professional Edition
Microsoft Visual C++ 5.0 Standard Edition
Microsoft Visual C++ 4.0 Cross Development Edition for Macintosh

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kbbug kbfix kbvc600fix KB120218

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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