enabled and fixed -Wmissing-field-initializers GCC warnings (#6964)

Author: firewave

Makefile

@@ -136,7 +136,7 @@ ifeq (clang++, $(findstring clang++,$(CXX)))
     CPPCHK_GLIBCXX_DEBUG=
 endif
 ifndef CXXFLAGS
-    CXXFLAGS=-pedantic -Wall -Wextra -Wcast-qual -Wfloat-equal -Wmissing-declarations -Wmissing-format-attribute -Wno-long-long -Wpacked -Wredundant-decls -Wundef -Wno-shadow -Wno-missing-field-initializers -Wno-missing-braces -Wno-sign-compare -Wno-multichar -Woverloaded-virtual $(CPPCHK_GLIBCXX_DEBUG) -g
+    CXXFLAGS=-pedantic -Wall -Wextra -Wcast-qual -Wfloat-equal -Wmissing-declarations -Wmissing-format-attribute -Wno-long-long -Wpacked -Wredundant-decls -Wundef -Wno-shadow -Wno-missing-braces -Wno-sign-compare -Wno-multichar -Woverloaded-virtual $(CPPCHK_GLIBCXX_DEBUG) -g
 endif
 
 ifeq (g++, $(findstring g++,$(CXX)))

cmake/compileroptions.cmake

@@ -47,7 +47,6 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang"
     add_compile_options(-Wpacked)                   #
     add_compile_options(-Wredundant-decls)          # if anything is declared more than once in the same scope
     add_compile_options(-Wundef)
-    add_compile_options(-Wno-missing-field-initializers)
     add_compile_options(-Wno-missing-braces)
     add_compile_options(-Wno-sign-compare)
     add_compile_options(-Wno-multichar)

lib/library.cpp

@@ -359,7 +359,7 @@ Library::Error Library::load(const tinyxml2::XMLDocument &doc)
                 const std::string memorynodename = memorynode->Name();
                 const auto names = getnames(memorynode->GetText());
                 if (memorynodename == "alloc" || memorynodename == "realloc") {
-                    AllocFunc temp = {0};
+                    AllocFunc temp;
                     temp.groupId = allocationId;
 
                     temp.initData = memorynode->BoolAttribute("init", true);
@@ -396,7 +396,7 @@ Library::Error Library::load(const tinyxml2::XMLDocument &doc)
                     for (const auto& n : names)
                         map[n] = temp;
                 } else if (memorynodename == "dealloc") {
-                    AllocFunc temp = {0};
+                    AllocFunc temp;
                     temp.groupId = allocationId;
                     temp.arg = memorynode->IntAttribute("arg", 1);
                     for (const auto& n : names)
@@ -689,7 +689,7 @@ Library::Error Library::load(const tinyxml2::XMLDocument &doc)
             const char * const name = node->Attribute("name");
             if (!name)
                 return Error(ErrorCode::MISSING_ATTRIBUTE, "name");
-            PodType podType = {0};
+            PodType podType;
             podType.stdtype = PodType::Type::NO;
             const char * const stdtype = node->Attribute("stdtype");
             if (stdtype) {

lib/library.h

@@ -78,14 +78,14 @@ class CPPCHECKLIB Library {
     Error load(const char exename[], const char path[], bool debug = false);
 
     struct AllocFunc {
-        int groupId;
-        int arg;
+        int groupId{};
+        int arg{};
         enum class BufferSize : std::uint8_t {none,malloc,calloc,strdup};
-        BufferSize bufferSize;
-        int bufferSizeArg1;
-        int bufferSizeArg2;
-        int reallocArg;
-        bool initData;
+        BufferSize bufferSize{BufferSize::none};
+        int bufferSizeArg1{};
+        int bufferSizeArg2{};
+        int reallocArg{};
+        bool initData{};
     };
 
     /** get allocation info for function */
@@ -416,9 +416,9 @@ class CPPCHECKLIB Library {
     const SmartPointer* detectSmartPointer(const Token* tok, bool withoutStd = false) const;
 
     struct PodType {
-        unsigned int size;
-        char sign;
-        enum class Type : std::uint8_t { NO, BOOL, CHAR, SHORT, INT, LONG, LONGLONG } stdtype;
+        unsigned int size{};
+        char sign{};
+        enum class Type : std::uint8_t { NO, BOOL, CHAR, SHORT, INT, LONG, LONGLONG } stdtype = Type::NO;
     };
     const PodType *podtype(const std::string &name) const;
 

tools/dmake/dmake.cpp

@@ -716,7 +716,6 @@ int main(int argc, char **argv)
                                 "-Wredundant-decls "
                                 "-Wundef "
                                 "-Wno-shadow "
-                                "-Wno-missing-field-initializers "
                                 "-Wno-missing-braces "
                                 "-Wno-sign-compare "
                                 "-Wno-multichar "