fix GCC errors

4 files changed, 6 insertions, 12 deletions

diff --git a/src/cmd_line.hpp b/src/cmd_line.hpp
index b7e1b70..18ea496 100644
--- a/src/cmd_line.hpp
+++ b/src/cmd_line.hpp
@@ -31,7 +31,7 @@ public:
     static CommandLine build_from_main(int argc, wchar_t* argv[])
     {
         if (argc < 1)
-            throw std::range_error(__FUNCTION__ ": invalid argc value");
+            throw std::range_error{"invalid argc value"};
 
         std::wstring argv0{argv[0]};
         --argc;
@@ -82,21 +82,21 @@ public:
         return safe;
     }
 
-    static constexpr auto sep = L' ';
+    static constexpr wchar_t sep() { return L' '; }
 
     std::wstring join_args() const
     {
-        return string::join(sep, escape_args());
+        return string::join(sep(), escape_args());
     }
 
     std::wstring join() const
     {
         if (!has_argv0())
-            throw std::logic_error(__FUNCTION__ ": doesn't have executable path");
+            throw std::logic_error{"argv[0] isn't defined"};
         std::wostringstream oss;
         oss << escape_argv0();
         if (has_args())
-            oss << sep << string::join(sep, escape_args());
+            oss << sep() << string::join(sep(), escape_args());
         return oss.str();
     }
 
diff --git a/src/error.cpp b/src/error.cpp
index e0b4648..edce89f 100644
--- a/src/error.cpp
+++ b/src/error.cpp
@@ -3,8 +3,6 @@
 // For details, see https://github.com/egor-tensin/privilege-check.
 // Distributed under the MIT License.
 
-#pragma once
-
 #include "error.hpp"
 
 #include <Windows.h>
diff --git a/src/process.cpp b/src/process.cpp
index 94765bc..a0618fa 100644
--- a/src/process.cpp
+++ b/src/process.cpp
@@ -23,7 +23,7 @@ namespace process
 
         const auto ret = GetModuleFileNameW(NULL, buf.data(), max_path);
 
-        if (GetLastError() != ERROR_SUCCESS)
+        if (ret != ERROR_SUCCESS)
             error::raise("GetModuleFileNameW");
 
         return buf.data();
@@ -34,8 +34,6 @@ namespace process
         HWND hwnd,
         int nShow)
     {
-        static constexpr auto sep = L' ';
-
         const auto exe_path = cmd_line.has_argv0()
             ? cmd_line.get_argv0()
             : get_executable_path();
diff --git a/src/sid.cpp b/src/sid.cpp
index 4a86704..879e4a7 100644
--- a/src/sid.cpp
+++ b/src/sid.cpp
@@ -3,8 +3,6 @@
 // For details, see https://github.com/egor-tensin/privilege-check.
 // Distributed under the MIT License.
 
-#pragma once
-
 #include "error.hpp"
 #include "sid.hpp"