diff --git a/src/main.cpp b/src/main.cpp
index 73f7324..be6ac35 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,121 +1,131 @@
-#include <iostream>
-#include <cstdlib>
-#include <string>
-#include <stdexcept>
-#include <climits>
-#include <algorithm>
-#include <getopt.h>
-#include <libscnumerics.hpp>
 #include "version.hpp"
+#include <algorithm>
+#include <cstdlib>
+#include <getopt.h>
+#include <iostream>
+#include <libscnumerics.hpp>
+#include <stdexcept>
+#include <string>
 
 // globals
-std::string upper {"ABCDEFGHIJKLMNOPQRSTUVWXYZ"};
-std::string lower {"abcdefghijklmnopqrstuvwxyz"};
-std::string digits {"0123456789"};
-std::string symbols {"_-=+<>,.!@#$%^&*"};
+std::string upper{"ABCDEFGHIJKLMNOPQRSTUVWXYZ"};
+std::string lower{"abcdefghijklmnopqrstuvwxyz"};
+std::string digits{"0123456789"};
+std::string symbols{"_-=+<>,.!@#$%^&*"};
 std::string special;
 std::string valid;
-int len {24};
-int min_upper {0};
-int min_lower {0};
-int min_digits {0};
-int min_symbols {0};
-int min_special {0};
+int len{24};
+int min_upper{0};
+int min_lower{0};
+int min_digits{0};
+int min_symbols{0};
+int min_special{0};
 
-int main(int argc, char* argv[]) {
-    try {
-        bool noflags {true};
-        int opt_char, opt_val;
-        struct option long_options[] = {
-            {"version", no_argument, &opt_val, 1},
-            {"count", required_argument, nullptr, 'c'},
-            {"digit", required_argument, nullptr, 'd'},
-            {"lower", required_argument, nullptr, 'l'},
-            {"symbol", required_argument, nullptr, 's'},
-            {"special", required_argument, nullptr, 'S'},
-            {"upper", required_argument, nullptr, 'u'},
-            {nullptr, 0, nullptr, 0}
-        };
-        while ((opt_char = getopt_long(argc, argv, "c:u:l:d:s:S:", long_options, nullptr)) != -1) {
-            std::string arg {optarg ? optarg : ""};
-            switch (opt_char) {
-                case 0: {
-                    // handle long-only options here
-                    switch (opt_val) {
-                        case 1:
-                            std::cout << pw_version() << '\n';
-                            return EXIT_SUCCESS;
-                    }
-                    break;
-                }
-                case 'u':
-                    valid += upper;
-                    min_upper = std::atoi(optarg);
-                    if (min_upper < 0) throw std::runtime_error("minimum amout of upper case must be zero or more");
-                    noflags = false;
-                    break;
-                case 'l':
-                    valid += lower;
-                    min_lower = std::atoi(optarg);
-                    if (min_upper < 0) throw std::runtime_error("minimum amout of lower case must be zero or more");
-                    noflags = false;
-                    break;
-                case 'd':
-                    valid += digits;
-                    min_digits = std::atoi(optarg);
-                    if (min_upper < 0) throw std::runtime_error("minimum amout of digits must be zero or more");
-                    noflags = false;
-                    break;
-                case 's':
-                    valid += symbols;
-                    min_symbols = std::atoi(optarg);
-                    if (min_upper < 0) throw std::runtime_error("minimum amout of symbols must be zero or more");
-                    noflags = false;
-                    break;
-                case 'S':
-                    special = arg;
-                    valid += arg;
-                    min_special = 1;
-                    noflags = false;
-                    break;
-                case 'c':
-                    len = std::stoi(optarg);
-                    break;
-                case '?':
-                    throw std::runtime_error("unrecognized option");
-            }
+int main(int argc, char *argv[]) {
+  try {
+    bool noflags{true};
+    int opt_char, opt_val;
+    struct option long_options[] = {
+        {"version", no_argument, &opt_val, 1},
+        {"count", required_argument, nullptr, 'c'},
+        {"digit", required_argument, nullptr, 'd'},
+        {"lower", required_argument, nullptr, 'l'},
+        {"symbol", required_argument, nullptr, 's'},
+        {"special", required_argument, nullptr, 'S'},
+        {"upper", required_argument, nullptr, 'u'},
+        {nullptr, 0, nullptr, 0}};
+    while ((opt_char = getopt_long(argc, argv, "c:u:l:d:s:S:", long_options,
+                                   nullptr)) != -1) {
+      std::string arg{optarg ? optarg : ""};
+      switch (opt_char) {
+      case 0: {
+        // handle long-only options here
+        switch (opt_val) {
+        case 1:
+          std::cout << pw_version() << '\n';
+          return EXIT_SUCCESS;
         }
-        if (noflags) {
-            valid = upper + lower + digits + symbols;
-        }
-        int num_free_choice = len - min_digits - min_lower - min_upper - min_symbols;
-        if (num_free_choice < 0) {
-            throw std::runtime_error("total minimum required exceeds password length");
-        }
-        std::string password;
-        for (int i = 0; i < min_digits; ++i) {
-            password += sc::random::choice<char>(digits.begin(), digits.end());
-        }
-        for (int i = 0; i < min_lower; ++i) {
-            password += sc::random::choice<char>(lower.begin(), lower.end());
-        }
-        for (int i = 0; i < min_upper; ++i) {
-            password += sc::random::choice<char>(upper.begin(), upper.end());
-        }
-        for (int i = 0; i < min_symbols; ++i) {
-            password += sc::random::choice<char>(symbols.begin(), symbols.end());
-        }
-        if (min_special) {
-            password += sc::random::choice<char>(special.begin(), special.end());
-        }
-        for (int i = 0; i < num_free_choice; ++i) {
-            password += sc::random::choice<char>(valid.begin(), valid.end());
-        }
-        std::shuffle(password.begin(), password.end(), sc::random::instance().engine());
-        std::cout << password << std::endl;
-    } catch (const std::exception& ex) {
-        std::cerr << "pw: " << ex.what() << '\n';
-        return EXIT_FAILURE;
+        break;
+      }
+      case 'u':
+        valid += upper;
+        min_upper = std::atoi(optarg);
+        if (min_upper < 0)
+          throw std::runtime_error(
+              "minimum amout of upper case must be zero or more");
+        noflags = false;
+        break;
+      case 'l':
+        valid += lower;
+        min_lower = std::atoi(optarg);
+        if (min_upper < 0)
+          throw std::runtime_error(
+              "minimum amout of lower case must be zero or more");
+        noflags = false;
+        break;
+      case 'd':
+        valid += digits;
+        min_digits = std::atoi(optarg);
+        if (min_upper < 0)
+          throw std::runtime_error(
+              "minimum amout of digits must be zero or more");
+        noflags = false;
+        break;
+      case 's':
+        valid += symbols;
+        min_symbols = std::atoi(optarg);
+        if (min_upper < 0)
+          throw std::runtime_error(
+              "minimum amout of symbols must be zero or more");
+        noflags = false;
+        break;
+      case 'S':
+        special = arg;
+        valid += arg;
+        min_special = 1;
+        noflags = false;
+        break;
+      case 'c':
+        len = std::stoi(optarg);
+        break;
+      case '?':
+        throw std::runtime_error("unrecognized option");
+      }
     }
-    return EXIT_SUCCESS;
+    if (noflags) {
+      valid = upper + lower + digits + symbols;
+    }
+    int num_free_choice =
+        len - min_digits - min_lower - min_upper - min_symbols;
+    if (num_free_choice < 0) {
+      throw std::runtime_error(
+          "total minimum required exceeds password length");
+    }
+    std::string password;
+    for (int i = 0; i < min_digits; ++i) {
+      password += sc::random::choice<char>(digits.begin(), digits.end());
+    }
+    for (int i = 0; i < min_lower; ++i) {
+      password += sc::random::choice<char>(lower.begin(), lower.end());
+    }
+    for (int i = 0; i < min_upper; ++i) {
+      password += sc::random::choice<char>(upper.begin(), upper.end());
+    }
+    for (int i = 0; i < min_symbols; ++i) {
+      password += sc::random::choice<char>(symbols.begin(), symbols.end());
+    }
+    if (min_special) {
+      password += sc::random::choice<char>(special.begin(), special.end());
+    }
+    for (int i = 0; i < num_free_choice; ++i) {
+      password += sc::random::choice<char>(valid.begin(), valid.end());
+    }
+    std::shuffle(password.begin(), password.end(),
+                 sc::random::instance().engine());
+    std::cout << password << std::endl;
+  } catch (const std::exception &ex) {
+    std::cerr << "pw: " << ex.what() << '\n';
+    return EXIT_FAILURE;
+  }
+  return EXIT_SUCCESS;
 }
diff --git a/src/version.cpp b/src/version.cpp
index b87ecb3..f05f897 100644
--- a/src/version.cpp
+++ b/src/version.cpp
@@ -2,18 +2,18 @@
 #include <sstream>
 
 std::string pw_version() {
-#include "version.inc"
 #include "commit.inc"
-    std::ostringstream oss;
-    oss << "pw version " << version;
+#include "version.inc"
+  std::ostringstream oss;
+  oss << "pw version " << version;
 #ifdef DEBUG
-    oss << " DEBUG";
+  oss << " DEBUG";
 #endif
-    oss << '\n';
-    if (commit[0] != '\0') {
-        oss << "build " << commit << ", ";
-    }
-    oss << __DATE__ << ", " << __TIME__ << '\n';
-    oss << "(c) Bob Polis, all rights reserved";
-    return oss.str();
+  oss << '\n';
+  if (commit[0] != '\0') {
+    oss << "build " << commit << ", ";
+  }
+  oss << __DATE__ << ", " << __TIME__ << '\n';
+  oss << "(c) Bob Polis, all rights reserved";
+  return oss.str();
 }