Character-to-Numeric Conversions

When converting a string to a numeric value, note the encoding of the string. When the string is a single-byte encoding, DS2 translates the value to a TKChar (UCS-2 or UCS-4) for conversion. The longer the string, the longer the time it takes to do the conversion.
dcl char(512) s;
dcl nchar(512) ns;
dcl double x;
s = '12.345';
ns = '12.345';
 
x = s;                /* slow */
x = substr(s,1,16);   /* faster */
x = substr(ns,1,16);  /* even faster, avoids transcoding */
Last updated: March 2, 2017