How convert double type to float?

The time transmitted from ALLSTAR DATA SOURCE is double type,and wanted to display time to LCD,so I want to convert double type to float ,and want to uS .How can i do that? Thanks a lot!
How convert double type to float?

The time transmitted from ALLSTAR DATA SOURCE is double type,and wanted to display time to LCD,so I want to convert double type to float ,and want to uS .How can i do that? Thanks a lot!
support for negative double float types in arm c

Hello keil Does keil arm C support negative double or float if not How I can use negative float numbers
uVision not displaying double type correctly with AT91SAM3U-EK

This problem does not occur in Simulation mode. It occurred using the AT91SAM3U-EK using the ULINK Pro JTAG probe. An automatic variable declared as type 'double' is not being displayed correctly...
support for negative double float types in arm c

Hello keil Does keil arm C support negative double or float if not How I can use negative float numbers