enabled and fixed -Wfloat-conversion Clang warnings (#7156)

Author: firewave

cmake/compileroptions.cmake

@@ -119,7 +119,6 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     add_compile_options_safe(-Wno-shadow-uncaptured-local)
     add_compile_options_safe(-Wno-implicit-float-conversion)
     add_compile_options_safe(-Wno-switch-enum)
-    add_compile_options_safe(-Wno-float-conversion)
     add_compile_options_safe(-Wno-date-time)
     add_compile_options(-Wno-disabled-macro-expansion)
     add_compile_options_safe(-Wno-bitwise-instead-of-logical)

gui/statsdialog.cpp

@@ -149,7 +149,7 @@ void StatsDialog::setNumberOfFilesScanned(int num)
 void StatsDialog::setScanDuration(double seconds)
 {
     // Factor the duration into units (days/hours/minutes/seconds)
-    int secs = seconds;
+    int secs = static_cast<int>(seconds);
     const int days = secs / (24 * 60 * 60);
     secs -= days * (24 * 60 * 60);
     const int hours = secs / (60 * 60);

lib/json.h

@@ -27,6 +27,7 @@ SUPPRESS_WARNING_CLANG_PUSH("-Wtautological-type-limit-compare")
 SUPPRESS_WARNING_CLANG_PUSH("-Wextra-semi-stmt")
 SUPPRESS_WARNING_CLANG_PUSH("-Wzero-as-null-pointer-constant")
 SUPPRESS_WARNING_CLANG_PUSH("-Wformat")
+SUPPRESS_WARNING_CLANG_PUSH("-Wfloat-conversion")
 
 #define PICOJSON_USE_INT64
 #include <picojson.h>
@@ -35,6 +36,7 @@ SUPPRESS_WARNING_CLANG_POP
 SUPPRESS_WARNING_CLANG_POP
 SUPPRESS_WARNING_CLANG_POP
 SUPPRESS_WARNING_CLANG_POP
+SUPPRESS_WARNING_CLANG_POP
 SUPPRESS_WARNING_GCC_POP
 SUPPRESS_WARNING_POP
 

lib/programmemory.cpp

@@ -578,6 +578,11 @@ static double asFloat(const ValueFlow::Value& value)
     return value.isFloatValue() ? value.floatValue : static_cast<double>(value.intvalue);
 }
 
+static MathLib::bigint asInt(const ValueFlow::Value& value)
+{
+    return value.isFloatValue() ? static_cast<MathLib::bigint>(value.floatValue) : value.intvalue;
+}
+
 static std::string removeAssign(const std::string& assign) {
     return std::string{assign.cbegin(), assign.cend() - 1};
 }
@@ -587,7 +592,7 @@ namespace {
         template<class T, class U>
         void operator()(T& x, const U& y) const
         {
-            x = y;
+            x = static_cast<T>(y);
         }
     };
 }
@@ -896,7 +901,7 @@ static std::unordered_map<std::string, BuiltinLibraryFunction> createBuiltinLibr
             return ValueFlow::Value::unknown();
         ValueFlow::Value v;
         combineValueProperties(args[0], args[1], v);
-        v.floatValue = std::scalbln(asFloat(args[0]), asFloat(args[1]));
+        v.floatValue = std::scalbln(asFloat(args[0]), asInt(args[1]));
         v.valueType = ValueFlow::Value::ValueType::FLOAT;
         return v;
     };
@@ -907,7 +912,7 @@ static std::unordered_map<std::string, BuiltinLibraryFunction> createBuiltinLibr
             return ValueFlow::Value::unknown();
         ValueFlow::Value v;
         combineValueProperties(args[0], args[1], v);
-        v.floatValue = std::ldexp(asFloat(args[0]), asFloat(args[1]));
+        v.floatValue = std::ldexp(asFloat(args[0]), asInt(args[1]));
         v.valueType = ValueFlow::Value::ValueType::FLOAT;
         return v;
     };