%CNV_PI

Convert portable integer data to native form

WTSupported in traditional Synergy on Windows

WNSupported in Synergy .NET on Windows

USupported on UNIX

VSupported on OpenVMS

native = %CNV_PI(portable_int)

Return value

native

The converted data in native form. (i)

Arguments

portable_int

The portable integer field to convert. (a)

Discussion

%CNV_PI converts a portable integer created by a previous %CNV_IP intrinsic function back to native form.

When you use the integer data type, your data files are not portable between big-endian and little-endian machines. (If you don’t know what endian type your machine is, see Endian types) Once you’ve used the %CNV_IP intrinsic function to convert your data to portable form and moved it to another machine, you can use %CNV_PI to convert your data back to native form.

For integer data in ISAM files on Windows and UNIX, we recommend using the portable integer specification, I=pos:len (or PORT_INT pos:len in XDL form).

Examples

The following routine reads a portable integer from a file and returns it as a native integer.

function rd_portable
    ch          ,n                      ;Open channel
    size        ,n                      ;Size of integer
record
    p_dat       ,a8                     ;Portable integer data
    int         ,i4
proc
    gets(ch, p_dat(1:size))             ;Read portable data from file
    int = %cnv_pi(p_dat(1:size))        ; convert back to integer
    freturn (int)                       ; and return it
endfunction