public Pair<Boolean, String> getPreprocValue(String nm) {
		IteratorSTL<Pair<String, String>> iter = preproc_defines.find(nm);
		if (iter.isEnd()) {
			return new Pair<>(false, null);
		}
		return new Pair<>(true, iter.get().second);
	}
Sets whether or not to print out warning info about
{@link Constructor}s which reference varnodes in the
unique space larger than {@link SleighBase#MAX_UNIQUE_SIZE}.
@param val whether to print info about contructors using large varnodes
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/slgh_compile/SleighCompile.java