Returns an unused libref. More...

Detailed Description

Use as follows:

libname mclib0 (work);
libname mclib1 (work);
libname mclib2 (work);

%let libref=%mf_getuniquelibref();
%put &=libref;

which returns:

mclib3

A blank value is returned if no usable libname is determined.

Parameters

[in]	prefix=	(mclib) first part of the returned libref. As librefs can be as long as 8 characters, a maximum length of 7 characters is premitted for this prefix.
[in]	maxtries=	(1000) Deprecated parameter. Remains here to ensure a non-breaking change. Will be removed in v5.