From 3225be6d9e7411aabaaec1b76bfc287444d86442 Mon Sep 17 00:00:00 2001
From: Misa <infoteddy@infoteddy.info>
Date: Thu, 11 Feb 2021 21:44:33 -0800
Subject: [PATCH] Fix is_number() accepting "-" as a number

The function would accept the string "-" as a number, when it isn't one.

To fix this, don't put it as part of the loop, just add another special
case.
---
 desktop_version/src/UtilityClass.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/desktop_version/src/UtilityClass.cpp b/desktop_version/src/UtilityClass.cpp
index 6915f9a3..56117e7c 100644
--- a/desktop_version/src/UtilityClass.cpp
+++ b/desktop_version/src/UtilityClass.cpp
@@ -272,6 +272,11 @@ bool is_number(const char* str)
 		return false;
 	}
 
+	if (str[0] == '-' && str[1] == '\0')
+	{
+		return false;
+	}
+
 	for (size_t i = 1; str[i] != '\0'; ++i)
 	{
 		if (!SDL_isdigit(str[i]))