Minh Nguyen / ArduinoJson

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Diff: src/ArduinoJson/Polyfills/safe_strcmp.hpp

Revision:
0:18ba3960b5dd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ArduinoJson/Polyfills/safe_strcmp.hpp	Fri Mar 19 19:30:50 2021 +0000
@@ -0,0 +1,32 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Namespace.hpp>
+
+#include <stdint.h>  // int8_t
+
+namespace ARDUINOJSON_NAMESPACE {
+
+inline int safe_strcmp(const char* a, const char* b) {
+  if (a == b)
+    return 0;
+  if (!a)
+    return -1;
+  if (!b)
+    return 1;
+  return strcmp(a, b);
+}
+
+inline int safe_strncmp(const char* a, const char* b, size_t n) {
+  if (a == b)
+    return 0;
+  if (!a)
+    return -1;
+  if (!b)
+    return 1;
+  return strncmp(a, b, n);
+}
+}  // namespace ARDUINOJSON_NAMESPACE