From 6beb3df583413a7084a9b2f6ffa6de3ea9817368 Mon Sep 17 00:00:00 2001
From: Elliott Sales de Andrade <quantum.analyst@gmail.com>
Date: Mon, 7 Sep 2020 23:52:27 -0400
Subject: [PATCH] Fix return type of fgetc.

On x86, this seems to work by fluke, but on other systems, it does not
work because `(char)EOF` never equals `EOF`, causing an infinite loop.

Signed-off-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>
---
 src/file_line_endings.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/file_line_endings.c b/src/file_line_endings.c
index 4587994..e8c8709 100644
--- a/src/file_line_endings.c
+++ b/src/file_line_endings.c
@@ -14,8 +14,8 @@ SEXP brio_file_line_endings(SEXP path) {
     error("Could not open file: %s", path_c);
   }
 
-  char c;
-  char prev_c = '\0';
+  int c;
+  int prev_c = '\0';
   while ((c = fgetc(fp)) != EOF) {
     if (c == '\n') {
       if (prev_c == '\r') {
-- 
2.26.2