License everything (GPL).

[plomrogue] / src / common / readwrite.c

diff --git a/src/common/readwrite.c b/src/common/readwrite.c
index ac7b56acad990ac6763d0022fd4e0c37cd99c34a..6c7d7d60c7e8887ee5b2b239e5d34868f3e75baf 100644 (file)
--- a/src/common/readwrite.c
+++ b/src/common/readwrite.c
@@ -1,4 +1,9 @@
-/* src/common/readwrite.c */
+/* src/common/readwrite.c
+ *
+ * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
+ * or any later version. For details on its copyright, license, and warranties,
+ * see the file NOTICE in the root directory of the PlomRogue source package.
+ */
 
 #include "readwrite.h"
 #include <stddef.h> /* size_t */
@@ -26,7 +31,7 @@ extern FILE * try_fopen(char * path, char * mode, const char * f)
     int test = sprintf(msg, "%s%s%s%s%s%s%s", msg1,f,msg2,mode,msg3,path,msg4);
     exit_trouble(test < 0, __func__, "sprintf");
     FILE * file_p = fopen(path, mode);
-    exit_err(NULL == file_p, msg);
+    exit_err(!file_p, msg);
     free(msg);
     return file_p;
 }
@@ -68,7 +73,7 @@ extern int try_fgetc(FILE * file, const char * f)
 extern char * try_fgets(char * line, int linemax, FILE * file, const char * f)
 {
     char * test = fgets(line, linemax, file);
-    exit_trouble(NULL == test && ferror(file), f, "fgets");
+    exit_trouble(!test && ferror(file), f, "fgets");
     return test;
 }