X-Git-Url: https://git.donarmstrong.com/?p=mothur.git;a=blobdiff_plain;f=dmat.cpp;h=64fd67e91c348aabd4dd268c8bb86a24cc053edc;hp=1d00cffe8672effe8e4f7f022ba28af1bfcc9015;hb=cf9987b67aa49777a4c91c2d21f96e58bf17aa82;hpb=1b4aa03040e61f4c2d47ce32cb12726dcdadb917

diff --git a/dmat.cpp b/dmat.cpp
index 1d00cff..64fd67e 100644
--- 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;