Practical IDL Programming

U

UCAR format, 172

uint data type

defined, 18

syntax and conversion function, 20

zeroed and index array creation functions, 27

See also integers

ulong data type

defined, 18

syntax and conversion function, 20

zeroed and index array creation functions, 27

See also integers

ulong64 data type defined, 18

syntax and conversion function, 20

zeroed and index array creation functions, 27

See also integers

Unable to connect to X Windows display message, 224

Unable to dereference NULL pointer message, 61

Unable to open X Windows display message, 224

underflow errors. See math error handling

unformatted (binary) files, 157–171

byte swapping, 162–164

described, 147, 157

finding current file pointer position, 162

procedures and functions ...