From 079644cfeb19e9ddfd1e4d86e6cd6bec3c648f37 Mon Sep 17 00:00:00 2001
From: Anthony Printup <92564080+anthonyprintup@users.noreply.github.com>
Date: Wed, 20 Sep 2023 02:34:02 +0200
Subject: [PATCH] fix(generator): Prevent calling `std::string::back` on an
 empty string

Fixes #124
---
 src/cmake_generator.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cmake_generator.cpp b/src/cmake_generator.cpp
index 1f50deb..083f76c 100644
--- a/src/cmake_generator.cpp
+++ b/src/cmake_generator.cpp
@@ -493,7 +493,7 @@ struct Generator {
                 throw std::runtime_error("Detected additional \" at the end of cmake block");
             }
             auto cmake_lf = tolf(cmake);
-            while (cmake_lf.back() == '\n')
+            while (!cmake_lf.empty() && cmake_lf.back() == '\n')
                 cmake_lf.pop_back();
             bool did_indent = false;
             for (char ch : cmake_lf) {