Remove redundant initialization

Source/Core/AudioCommon/PulseAudioStream.cpp

@@ -15,9 +15,7 @@ namespace
 const size_t BUFFER_SAMPLES = 512;  // ~10 ms - needs to be at least 240 for surround
 }
 
-PulseAudio::PulseAudio() : m_thread(), m_run_thread()
-{
-}
+PulseAudio::PulseAudio() = default;
 
 bool PulseAudio::Init()
 {

Source/Core/Common/GekkoDisassembler.cpp

@@ -118,8 +118,8 @@ static const char* regnames[32] = {"r0",  "sp",  "rtoc", "r3",  "r4",  "r5",  "r
 // Initialize static class variables.
 u32* GekkoDisassembler::m_instr = nullptr;
 u32* GekkoDisassembler::m_iaddr = nullptr;
-std::string GekkoDisassembler::m_opcode = "";
-std::string GekkoDisassembler::m_operands = "";
+std::string GekkoDisassembler::m_opcode;
+std::string GekkoDisassembler::m_operands;
 unsigned char GekkoDisassembler::m_type = 0;
 unsigned char GekkoDisassembler::m_flags = PPCF_ILLEGAL;
 unsigned short GekkoDisassembler::m_sreg = 0;

Source/Core/Common/Profiler.cpp

@@ -25,7 +25,7 @@ u32 Profiler::s_max_length = 0;
 u64 Profiler::s_frame_time;
 u64 Profiler::s_usecs_frame;
 
-std::string Profiler::s_lazy_result = "";
+std::string Profiler::s_lazy_result;
 int Profiler::s_lazy_delay = 0;
 
 Profiler::Profiler(const std::string& name)

Source/Core/Core/Debugger/Debugger_SymbolMap.cpp

@@ -147,7 +147,7 @@ void PrintDataBuffer(LogTypes::LOG_TYPE type, const u8* data, size_t size, const
   GENERIC_LOG(type, LogTypes::LDEBUG, "%s", title.c_str());
   for (u32 j = 0; j < size;)
   {
-    std::string hex_line = "";
+    std::string hex_line;
     for (int i = 0; i < 16; i++)
     {
       hex_line += StringFromFormat("%02x ", data[j++]);

Source/Core/Core/HW/WiimoteReal/IOLinux.cpp

@@ -106,7 +106,7 @@ void WiimoteScannerLinux::FindWiimotes(std::vector<Wiimote*>& found_wiimotes, Wi
   }
 }
 
-WiimoteLinux::WiimoteLinux(bdaddr_t bdaddr) : Wiimote(), m_bdaddr(bdaddr)
+WiimoteLinux::WiimoteLinux(bdaddr_t bdaddr) : m_bdaddr(bdaddr)
 {
   m_really_disconnect = true;
 

Source/Core/Core/HW/WiimoteReal/WiimoteReal.cpp

@@ -52,6 +52,8 @@ std::mutex g_wiimotes_mutex;
 std::unique_ptr<Wiimote> g_wiimotes[MAX_BBMOTES];
 WiimoteScanner g_wiimote_scanner;
 
+Wiimote::Wiimote() = default;
+
 void Wiimote::Shutdown()
 {
   std::lock_guard<std::mutex> lk(s_known_ids_mutex);

Source/Core/Core/HW/WiimoteReal/WiimoteReal.h

@@ -1,4 +1,4 @@
-// Copyright 2008 Dolphin Emulator Project
+// Copyright 2008 Dolphin Emulator Project
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
@@ -113,10 +113,10 @@ public:
   int GetIndex() const;
 
 protected:
-  Wiimote() = default;
+  Wiimote();
 
   int m_index = 0;
-  Report m_last_input_report = {};
+  Report m_last_input_report;
   u16 m_channel = 0;
 
   // If true, the Wiimote will be really disconnected when it is disconnected by Dolphin.

Source/Core/Core/Movie.cpp

@@ -92,8 +92,8 @@ static bool s_bSaveConfig = false, s_bNetPlay = false;
 static bool s_bClearSave = false;
 static bool s_bDiscChange = false;
 static bool s_bReset = false;
-static std::string s_author = "";
-static std::string s_discChange = "";
+static std::string s_author;
+static std::string s_discChange;
 static std::array<u8, 16> s_MD5;
 static u8 s_bongos, s_memcards;
 static std::array<u8, 20> s_revision;

Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp

@@ -116,13 +116,13 @@ static int startTrace = 0;
 
 static void Trace(UGeckoInstruction& inst)
 {
-  std::string regs = "";
+  std::string regs;
   for (int i = 0; i < 32; i++)
   {
     regs += StringFromFormat("r%02d: %08x ", i, PowerPC::ppcState.gpr[i]);
   }
 
-  std::string fregs = "";
+  std::string fregs;
   for (int i = 0; i < 32; i++)
   {
     const auto& ps = PowerPC::ppcState.ps[i];

Source/Core/UICommon/Disassembler.cpp

@@ -83,7 +83,7 @@ std::string HostDisassemblerLLVM::DisassembleHostBlock(const u8* code_start, con
       {
         // If we are on an architecture that has a fixed instruction size
         // We can continue onward past this bad instruction.
-        std::string inst_str = "";
+        std::string inst_str;
         for (int i = 0; i < m_instruction_size; ++i)
           inst_str += StringFromFormat("%02x", disasmPtr[i]);
 
@@ -94,7 +94,7 @@ std::string HostDisassemblerLLVM::DisassembleHostBlock(const u8* code_start, con
       {
         // We can't continue if we are on an architecture that has flexible instruction sizes
         // Dump the rest of the block instead
-        std::string code_block = "";
+        std::string code_block;
         for (int i = 0; (disasmPtr + i) < end; ++i)
           code_block += StringFromFormat("%02x", disasmPtr[i]);
 

Source/Core/UICommon/UICommon.cpp

@@ -194,7 +194,7 @@ void SetUserDirectory(const std::string& custom_path)
     return;
   }
 
-  std::string user_path = "";
+  std::string user_path;
 #ifdef _WIN32
   // Detect where the User directory is. There are five different cases
   // (on top of the command line flag, which overrides all this):

Source/Core/VideoBackends/Null/Render.cpp

@@ -66,7 +66,7 @@ std::unique_ptr<AbstractShader> Renderer::CreateShaderFromBinary(ShaderStage sta
 class NullPipeline final : public AbstractPipeline
 {
 public:
-  NullPipeline() : AbstractPipeline() {}
+  NullPipeline() = default;
   ~NullPipeline() override = default;
 };
 

Source/Core/VideoBackends/OGL/ProgramShaderCache.cpp

@@ -51,7 +51,7 @@ static int num_failures = 0;
 static GLuint CurrentProgram = 0;
 ProgramShaderCache::PipelineProgramMap ProgramShaderCache::s_pipeline_programs;
 std::mutex ProgramShaderCache::s_pipeline_program_lock;
-static std::string s_glsl_header = "";
+static std::string s_glsl_header;
 static std::atomic<u64> s_shader_counter{0};
 static thread_local bool s_is_shared_context = false;
 
@@ -684,7 +684,7 @@ void ProgramShaderCache::CreateHeader()
     break;
   }
 
-  std::string earlyz_string = "";
+  std::string earlyz_string;
   if (g_ActiveConfig.backend_info.bSupportsEarlyZ)
   {
     if (g_ogl_config.bSupportsImageLoadStore)

Source/Core/VideoBackends/Software/SWRenderer.cpp

@@ -83,7 +83,7 @@ std::unique_ptr<AbstractShader> SWRenderer::CreateShaderFromBinary(ShaderStage s
 class SWPipeline final : public AbstractPipeline
 {
 public:
-  SWPipeline() : AbstractPipeline() {}
+  SWPipeline() = default;
   ~SWPipeline() override = default;
 };
 

Source/Core/VideoCommon/PostProcessing.cpp

@@ -275,7 +275,7 @@ void PostProcessingConfiguration::SaveOptionsConfiguration()
     break;
     case ConfigurationOption::OptionType::OPTION_INTEGER:
     {
-      std::string value = "";
+      std::string value;
       for (size_t i = 0; i < it.second.m_integer_values.size(); ++i)
         value += StringFromFormat("%d%s", it.second.m_integer_values[i],
                                   i == (it.second.m_integer_values.size() - 1) ? "" : ", ");

Source/Core/VideoCommon/TextureCacheBase.cpp

@@ -1127,7 +1127,7 @@ TextureCacheBase::GetTexture(u32 address, u32 width, u32 height, const TextureFo
   entry->memory_stride = entry->BytesPerRow();
   entry->SetNotCopy();
 
-  std::string basename = "";
+  std::string basename;
   if (g_ActiveConfig.bDumpTextures && !hires_tex)
   {
     basename = HiresTexture::GenBaseName(src_data, texture_size, &texMem[tlutaddr], palette_size,

Source/UnitTests/Common/StringUtilTest.cpp

@@ -44,7 +44,7 @@ TEST(StringUtil, StringEndsWith)
 TEST(StringUtil, StringPopBackIf)
 {
   std::string abc = "abc";
-  std::string empty = "";
+  std::string empty;
 
   StringPopBackIf(&abc, 'a');
   StringPopBackIf(&empty, 'a');