rebol/rebol — pull request #145 by ladislav (2013-09-08 10:32:26+00:00)
Title: Modify INTEGER! multiplication to not use division for overflow detection.

Modify INTEGER! addition and subtraction to not use undefined arithmetic.
Do not use MAX_NEG_INT in t_integer.c (problematic name).
Amend a comment referring to reb-config.h
Tests in Linux (0.4.4) reveal no regression
Multiplication speed tests reveal improvement
Based on #142 to not cause merge conflicts