Guard against potentially rounding to 0 when choosing sorting unit

2025-01-22 04:18:01 +00:00 · 2017-02-17 14:14:55 -08:00 · 2017-02-17 14:14:55 -08:00 · 9c1f2b2123
commit 9c1f2b2123
parent 1b68dcdc22
1 changed files with 3 additions and 0 deletions
--- a/main.cpp
+++ b/main.cpp
@ -708,6 +708,9 @@ void radix1(int *geomfds_in, int *indexfds_in, int inputs, int prefix, int split
 					unit = max_unit;
 				}
 				unit = ((unit + page - 1) / page) * page;
+				if (unit < page) {
+					unit = page;
+				}

 				size_t nmerges = (indexpos + unit - 1) / unit;
 				struct mergelist merges[nmerges];