From: yifanhu <devnull@localhost>
Date: Tue, 2 Sep 2008 14:59:58 +0000 (+0000)
Subject: added an assert
X-Git-Tag: LAST_LIBGRAPH~32^2~3493
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=78adfa083c4e2e253bc9c135f2d842c2b84a4393;p=graphviz

added an assert
---

diff --git a/lib/sparse/SparseMatrix.c b/lib/sparse/SparseMatrix.c
index 2973d8642..42e8d3443 100644
--- a/lib/sparse/SparseMatrix.c
+++ b/lib/sparse/SparseMatrix.c
@@ -1610,6 +1610,7 @@ SparseMatrix SparseMatrix_sum_repeat_entries(SparseMatrix A, int what_to_sum){
 SparseMatrix SparseMatrix_coordinate_form_add_entries(SparseMatrix A, int nentries, int *irn, int *jcn, void *val){
   int nz, type = A->type, nzmax, i;
   
+  assert(A);
   assert(A->format == FORMAT_COORD);
   if (nentries <= 0) return A;
   nz = A->nz;