Cleaning and debug codeHEADmain

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Fen.cpp b/src/Fen.cpp
index 54dddfd..3ba4ddb 100644
--- a/src/Fen.cpp
+++ b/src/Fen.cpp
@@ -28,7 +28,7 @@ std::string FENParser::normalize_rank(const std::string &fen_rank) {
 }
 
 char FENParser::NextToken(const std::string &fen, char loc) {
-  while (loc < fen.size() && IS_BLANK(fen[loc])) {
+  while (loc < (char)fen.size() && IS_BLANK(fen[loc])) {
     loc++;
   }
   return (loc);
@@ -36,7 +36,7 @@ char FENParser::NextToken(const std::string &fen, char loc) {
 
 char FENParser::NextRank(const std::string &fen, char loc) {
   loc++;
-  while (loc < fen.size() && fen[loc] != '/' && fen[loc] != ' ') {
+  while (loc < (char)fen.size() && fen[loc] != '/' && fen[loc] != ' ') {
     loc++;
   }
   return (loc);
@@ -190,7 +190,7 @@ FEN FENParser::Parse(const std::string &fen) {
   // Parse move counter
   loc = NextToken(fen, loc);
   std::string move;
-  while (loc < fen.size() && !IS_BLANK(fen[loc])) {
+  while (loc < (char)fen.size() && !IS_BLANK(fen[loc])) {
     if (!IS_DIGIT(fen[loc])) {
       throw InvalidFEN();
     }