From 5e7f9abd8c579bb82dfa818bb95601034897ddbe Mon Sep 17 00:00:00 2001
From: tanneberger <revol-xut@protonmail.com>
Date: Wed, 15 May 2024 21:35:33 +0200
Subject: [PATCH] updating code

---
 include/config.h       | 19 +++++++++++--------
 src/config.cpp         |  8 ++++----
 src/tetra-receiver.cpp |  6 +++---
 3 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/include/config.h b/include/config.h
index 514970e..28bde1f 100644
--- a/include/config.h
+++ b/include/config.h
@@ -1,3 +1,6 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
 #include <map>
 #include <string>
 #include <string_view>
@@ -43,9 +46,7 @@ template <typename T> class Range {
 
   /// Check that the given Range is inside the bounds (inclusive) of this Range.
   [[nodiscard]] auto contains(const Range<T>& other) const noexcept -> bool {
-    if (other.min_ < min_ || other.max_ > max_)
-      return false;
-    return true;
+    return !static_cast<bool>(other.min_ < min_ || other.max_ > max_);
   };
 };
 
@@ -66,15 +67,15 @@ template <typename T> class SpectrumSlice {
       , frequency_range_(center_frequency - sample_rate / 2, center_frequency + sample_rate / 2)
       , sample_rate_(sample_rate){};
 
-  friend bool operator==(const SpectrumSlice<T>&, const SpectrumSlice<T>&);
-  friend bool operator!=(const SpectrumSlice<T>&, const SpectrumSlice<T>&);
+  friend auto operator==(const SpectrumSlice<T>&, const SpectrumSlice<T>&) -> bool;
+  friend auto operator!=(const SpectrumSlice<T>&, const SpectrumSlice<T>&) -> bool;
 };
 
-template <typename T> bool operator==(const SpectrumSlice<T>& lhs, const SpectrumSlice<T>& rhs) {
+template <typename T> auto operator==(const SpectrumSlice<T>& lhs, const SpectrumSlice<T>& rhs) -> bool {
   return lhs.center_frequency_ == rhs.center_frequency_ && lhs.sample_rate_ == rhs.sample_rate_;
 };
 
-template <typename T> bool operator!=(const SpectrumSlice<T>& lhs, const SpectrumSlice<T>& rhs) {
+template <typename T> auto operator!=(const SpectrumSlice<T>& lhs, const SpectrumSlice<T>& rhs) -> bool {
   return !operator==<T>(lhs, rhs);
 };
 
@@ -180,7 +181,7 @@ static config::decimate_or_stream get_decimate_or_stream(const config::SpectrumS
 }
 
 template <> struct from<config::TopLevel> {
-  static config::TopLevel from_toml(const value& v) {
+  static auto from_toml(const value& v) -> config::TopLevel {
     const unsigned int center_frequency = find<unsigned int>(v, "CenterFrequency");
     const std::string device_string = find<std::string>(v, "DeviceString");
     const unsigned int sample_rate = find<unsigned int>(v, "SampleRate");
@@ -247,3 +248,5 @@ template <> struct from<config::TopLevel> {
 }; // namespace toml
 
 #endif
+
+#endif
diff --git a/src/config.cpp b/src/config.cpp
index bc3f8da..0118c61 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -17,8 +17,8 @@ Stream::Stream(const SpectrumSlice<unsigned int>& input_spectrum, const Spectrum
   const auto& input_sample_rate = input_spectrum.sample_rate_;
   const auto& sample_rate = spectrum.sample_rate_;
   decimation_ = input_sample_rate / sample_rate;
-  auto rem = input_sample_rate % sample_rate;
-  if (rem != 0) {
+  auto remainder = input_sample_rate % sample_rate;
+  if (remainder != 0) {
     throw std::invalid_argument("Input sample rate is not divisible by Stream block sample rate.");
   }
 }
@@ -34,9 +34,9 @@ Decimate::Decimate(const SpectrumSlice<unsigned int>& input_spectrum, const Spec
   const auto& input_sample_rate = input_spectrum.sample_rate_;
   const auto& sample_rate = spectrum.sample_rate_;
   decimation_ = input_sample_rate / sample_rate;
-  auto rem = input_sample_rate % sample_rate;
+  auto remainder = input_sample_rate % sample_rate;
 
-  if (rem != 0) {
+  if (remainder != 0) {
     throw std::invalid_argument("Input sample rate is not divisible by Decimate block sample rate.");
   }
 
diff --git a/src/tetra-receiver.cpp b/src/tetra-receiver.cpp
index 2c9ebb8..5d7df0e 100644
--- a/src/tetra-receiver.cpp
+++ b/src/tetra-receiver.cpp
@@ -1,7 +1,7 @@
 #include <fstream>
 #include <iostream>
 #include <sstream>
-#include <stdlib.h>
+#include <cstdlib>
 #include <string>
 
 #include <cxxopts.hpp>
@@ -140,7 +140,7 @@ class GnuradioTopBlock {
   }
 };
 
-int main(int argc, char** argv) {
+auto main(int argc, char** argv) -> int {
   try {
     cxxopts::Options options("tetra-receiver", "Receive multiple TETRA streams at once and send the bits out via UDP");
 
@@ -166,7 +166,7 @@ int main(int argc, char** argv) {
       return EXIT_SUCCESS;
     }
 
-    gr::top_block_sptr tb;
+    gr::top_block_sptr tb = 0;
 
     // Read from config file instead
     if (result.count("config-file")) {