csv

commit 25a9500caba30aeb01ed4e8931a82dc6ae1efde1
parent 2f44c7e5c28a3e5b14c0367c95b0a33ffd6cc277
Author: aabacchus <ben@bvnf.space>
Date:   Sat,  2 Oct 2021 17:13:32 +0100

check for extra cells

Diffstat:
M
csv.c
 | 
9
+++++++++

1 file changed, 9 insertions(+), 0 deletions(-)
diff --git a/csv.c b/csv.c
@@ -69,6 +69,15 @@ read_data(FILE *f, float ***datap, int ncols) {
 				np = n;
 			}
 			x++;
+			if (x > ncols) {
+				/* extra cells in the row. eat up the rest of the row to avoid writing into
+				 * unallocated memory */
+				fprintf(stderr, "warning: extra cells in row %d\n", y + 1);
+				while (c != '\n' && c != EOF)
+					c = fgetc(f);
+				if (c == EOF)
+					break;
+			}
 			if (c == '\n') {
 				if (x < ncols) {
 					fprintf(stderr, "warning: %d cells missing from row %d\n", ncols - x, y + 1);