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


The converted data in native form. (i)



The portable integer field to convert. (a)


%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).


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
    p_dat       ,a8                     ;Portable integer data
    int         ,i4
    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