Add 'using namespace std' for readability

src/main.cpp

@@ -8,10 +8,12 @@
 #include <libscrequest.hpp>
 #include "version.hpp"
 
+using namespace std;
+
 void print_help() {
-    std::cout << "usage: gitlabvers [-h|--version]\n";
-    std::cout << "  -h, --help    show this help text and exit\n";
-    std::cout << "  --version     show version number and exit\n";
+    cout << "usage: gitlabvers [-h|--version]\n";
+    cout << "  -h, --help    show this help text and exit\n";
+    cout << "  --version     show version number and exit\n";
 }
 
 int main(int argc, char* argv[]) {
@@ -25,13 +27,13 @@ int main(int argc, char* argv[]) {
             {nullptr, 0, nullptr, 0}
         };
         while ((opt_char = getopt_long(argc, argv, "ah", long_options, nullptr)) != -1) {
-            std::string arg {optarg ? optarg : ""};
+            string arg {optarg ? optarg : ""};
             switch (opt_char) {
                 case 0: {
                     // handle long-only options here
                     switch (opt_val) {
                         case 1:
-                            std::cout << gitlabvers_version() << std::endl;
+                            cout << gitlabvers_version() << endl;
                             return EXIT_SUCCESS;
                     }
                     break;
@@ -43,7 +45,7 @@ int main(int argc, char* argv[]) {
                     print_help();
                     return EXIT_SUCCESS;
                 case '?':
-                    throw std::runtime_error("unrecognized option");
+                    throw runtime_error("unrecognized option");
             }
         }
         if (optind == argc) {
@@ -52,27 +54,27 @@ int main(int argc, char* argv[]) {
         for (int i = optind; i < argc; ++i) {
             try {
                 // process file argv[i]
-            } catch (const std::runtime_error& ex) {
-                std::cerr << "gitlabvers: " << ex.what() << '\n';
+            } catch (const runtime_error& ex) {
+                cerr << "gitlabvers: " << ex.what() << '\n';
             }
         }
         sc::requester req;
-        std::string text {req.get("https://gitlab.com/gitlab-org/gitlab-foss/-/raw/master/CHANGELOG.md")};
-        std::regex pat {R"(^##\s+(\d+\.\d+\.\d+)\s+\((\d+-\d+-\d+))", std::regex::multiline};
-        std::sregex_iterator beg {text.begin(), text.end(), pat};
-        std::sregex_iterator end {};
-        std::vector<std::string> lines;
-        for (std::sregex_iterator i = beg; i != end; ++i) {
-            std::smatch match {*i};
-            std::string line = std::string(match[1]) + " [" + std::string(match[2]) + "]\n";
+        string text {req.get("https://gitlab.com/gitlab-org/gitlab-foss/-/raw/master/CHANGELOG.md")};
+        regex pat {R"(^##\s+(\d+\.\d+\.\d+)\s+\((\d+-\d+-\d+))", regex::multiline};
+        sregex_iterator beg {text.begin(), text.end(), pat};
+        sregex_iterator end {};
+        vector<string> lines;
+        for (sregex_iterator i = beg; i != end; ++i) {
+            smatch match {*i};
+            string line = string(match[1]) + " [" + string(match[2]) + "]\n";
             lines.push_back(line);
             if (!all) break;
         }
         for (auto it = lines.rbegin(); it != lines.rend(); ++it) {
-            std::cout << *it;
+            cout << *it;
         }
-    } catch (const std::exception& ex) {
-        std::cerr << "gitlabvers: " << ex.what() << '\n';
+    } catch (const exception& ex) {
+        cerr << "gitlabvers: " << ex.what() << '\n';
         return EXIT_FAILURE;
     }
     return EXIT_SUCCESS;