ADLINK PCI-9810 - Manual (Page 59)

Function Reference 47
Data Types
Some data types were defined in Pci_9812.h (DOS) and Acl_pci.h
(Windows 95). These data types are used by the NuDAQ card
library. It is recommended that you use these data types for your
application programs. The following table lists the data type
names and their ranges.
Type
Name
Description Range
U8 8-bit ASCII character 0 to 255
I16 16-bit signed integer -32768 to 32767
U16 16-bit unsigned integer 0 to 65535
I32 32-bit signed integer -2147483648 to 2147483647
U32 32-bit single-precision floating-point 0 to 4294967295
F32 32-bit single-precision floating-point -3.402823E38 to 3.402823E38
F64
64-bit double-precision floating-point -1.797683134862315E308 to
1.797683134862315E309
Boolea
n
Boolean logic value TRUE, FALSE
Table 6-1: Data Types