~spidernet/algebraiC: Add null check to make_zero function

~spidernet/algebraiC

7486aaade3a98c338fb50e7a2b354a266808b0a7 — Alessio Chiapperini 3 years ago c7774b5

Add null check to make_zero function

Protect against passing a NULL pointer to the function. Now it will
always never crash and it will return a NULL pointer if the parameter is
NULL.

patch browse .tar.gz

1 files changed, 4 insertions(+), 2 deletions(-)

M peano/peano.c

M peano/peano.c => peano/peano.c +4 -2

@@ 16,8 16,10 @@ struct peano {
 struct peano *
 make_zero(struct peano *num)
 {
-        num->type = ZERO;
-        num->data = 0;
+        if (num) {
+                num->type = ZERO;
+                num->data = 0;
+        }
 
         return num;
 }