working on pam

[mothur.git] / dmat.cpp

diff --git a/dmat.cpp b/dmat.cpp
index 1d00cffe8672effe8e4f7f022ba28af1bfcc9015..64fd67e91c348aabd4dd268c8bb86a24cc053edc 100644 (file)
--- a/dmat.cpp
+++ b/dmat.cpp
@@ -465,7 +465,7 @@ NJ_parse_distance_matrix(NJ_ARGS *nj_args) {
     fp = stdin;
   } else {
     fp = fopen(nj_args->infilename, "r");
-    if(!fp) {
+    if(fp==NULL) {
       fprintf(stderr, "Clearcut: Could not open distance matrix: %s\n", nj_args->infilename);
       perror("Clearcut");
       goto XIT_BAD;