Cppcheck v2.15.0 support

- new rule in Cppcheck 2.15.0
  - suspiciousFloatingPointCast
- update unit test

Author: Nekto89

cxx-sensors/src/main/resources/cppcheck.xml

@@ -8111,6 +8111,20 @@ Pointer arithmetic overflow.
     <remediationFunction>CONSTANT_ISSUE</remediationFunction>
     <remediationFunctionBaseEffort>5min</remediationFunctionBaseEffort>
     </rule>  
+  <!-- ########### New in Cppcheck 2.15.0 ########### -->
+  <rule>
+    <key>suspiciousFloatingPointCast</key>
+    <name>Floating-point cast causes loss of precision</name>
+    <description><![CDATA[
+        <p>
+  If this cast is not intentional, remove it to avoid loss of precision
+  </p>
+  <h2>References</h2>
+  <p><a href="https://cwe.mitre.org/data/definitions/398.html" target="_blank">CWE-398</a></p>
+        ]]></description>
+    <tag>cwe</tag>
+    <severity>MINOR</severity>
+    </rule>
   <!-- ########### Internal Cppcheck errors (not in errorlist) ########### -->
   <rule>
     <key>internalAstError</key>

cxx-sensors/src/test/java/org/sonar/cxx/sensors/cppcheck/CxxCppCheckRuleRepositoryTest.java

@@ -1,6 +1,6 @@
 /*
  * C++ Community Plugin (cxx plugin)
- * Copyright (C) 2010-2023 SonarOpenCommunity
+ * Copyright (C) 2010-2024 SonarOpenCommunity
  * http://github.com/SonarOpenCommunity/sonar-cxx
  *
  * This program is free software; you can redistribute it and/or
@@ -37,7 +37,7 @@ void createRulesTest() {
     def.define(context);
 
     RulesDefinition.Repository repo = context.repository(CxxCppCheckRuleRepository.KEY);
-    assertThat(repo.rules()).hasSize(685);
+    assertThat(repo.rules()).hasSize(686);
   }
 
 }