19990922

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@534 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 3 deletions

diff --git a/io.c b/io.c
index 3aa95e2ca..c1c7d511d 100644
--- a/io.c
+++ b/io.c
@@ -449,14 +449,15 @@ io_fread(ptr, len, f)
     FILE *f;
 {
     size_t n = len;
+    int c;
 
     while (n--) {
-	*ptr = getc(f);
-	if (*ptr == EOF) {
+	c = getc(f);
+	if (c == EOF) {
 	    *ptr = '\0';
 	    break;
 	}
-	ptr++;
+	*ptr++ = c;
 	if (!READ_DATA_PENDING(f)) {
 	    rb_thread_wait_fd(fileno(f));
 	}