Enables fast float-to-integer conversions.
None
IA-32
| Linux: | -rcd |
| Windows: | /Qrcd |
None
| OFF | Floating-point values are truncated when a conversion to an integer is involved. On Windows, this is the same as specifying /QIfist-. |
This option enables fast float-to-integer conversions. It can improve the performance of code that requires floating-point-to-integer conversions.
The system default floating-point rounding mode is round-to-nearest. However, the Fortran language requires floating-point values to be truncated when a conversion to an integer is involved. To do this, the compiler must change the rounding mode to truncation before each floating-point-to-integer conversion and change it back afterwards.
This option disables the change to truncation of the rounding mode for all floating-point calculations, including floating point-to-integer conversions. This option can improve performance, but floating-point conversions to integer will not conform to Fortran semantics.
Linux: None
Windows: /QIfist