From 0edf37b6ccee8242aa46f26aacda2edaff706bed Mon Sep 17 00:00:00 2001
From: Michael Tesch <tesch1@gmail.com>
Date: Wed, 19 Dec 2018 21:58:37 +0100
Subject: [PATCH] accept single '-' as argument, such as in `cat -` (#153)

---
 include/cxxopts.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index 1db7941..81ac11c 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -1723,7 +1723,7 @@ ParseResult::parse(int& argc, char**& argv)
       //not a flag
 
       // but if it starts with a `-`, then it's an error
-      if (argv[current][0] == '-') {
+      if (argv[current][0] == '-' && argv[current][1] != '\0') {
         throw option_syntax_exception(argv[current]);
       }