Visible to Intel only — GUID: GUID-1E5FCA40-3C83-4593-B1B3-B7D513EF51BB
Visible to Intel only — GUID: GUID-1E5FCA40-3C83-4593-B1B3-B7D513EF51BB
pc, Qpc
Enables control of floating-point significand precision.
Syntax
Linux: |
-pcn |
macOS: |
-pcn |
Windows: |
/Qpcn |
Arguments
n |
Is the floating-point significand precision. Possible values are:
|
Default
-pc80 |
On Linux* and macOS systems, the floating-point significand is rounded to 64 bits. On Windows* systems, the floating-point significand is rounded to 53 bits. |
Description
This option enables control of floating-point significand precision.
Some floating-point algorithms are sensitive to the accuracy of the significand, or fractional part of the floating-point value. For example, iterative operations like division and finding the square root can run faster if you lower the precision with this option.
Note that a change of the default precision control or rounding mode, for example, by using the [Q]pc32 option or by user intervention, may affect the results returned by some of the mathematical functions.
IDE Equivalent
Alternate Options
None