Throw an exception when trying to parse a negative number as an unsigned.

Fixing issue 859.
2025-09-10 04:51:17 +00:00 · 2020-05-20 00:48:22 +08:00
parent 4b98aedc16
commit d9c35b6079
3 changed files with 10 additions and 1 deletions
--- a/include/yaml-cpp/node/convert.h
+++ b/include/yaml-cpp/node/convert.h
@@ -15,6 +15,7 @@
 #include <sstream>
 #include <type_traits>
 #include <vector>
+#include <type_traits>

 #include "yaml-cpp/binary.h"
 #include "yaml-cpp/node/impl.h"
@@ -133,6 +134,9 @@ inner_encode(const T& rhs, std::stringstream& stream){
      const std::string& input = node.Scalar();                            \
      std::stringstream stream(input);                                     \
      stream.unsetf(std::ios::dec);                                        \
+      if ((stream.peek() == '-') && std::is_unsigned<type>::value) {       \
+        return false;                                                      \
+      }                                                                    \
      if ((stream >> std::noskipws >> rhs) && (stream >> std::ws).eof()) { \
        return true;                                                       \
      }                                                                    \