From 543d3a425d977a3693d71031a5dc98b9fb0e4e58 Mon Sep 17 00:00:00 2001
From: Jim Melton <jwmelto@users.sourceforge.net>
Date: Fri, 6 Jan 2023 11:56:58 -0700
Subject: [PATCH] flush output

---
 src/algorithms/PVT/libs/nmea_printer.cc | 30 ++++++++++++-------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/src/algorithms/PVT/libs/nmea_printer.cc b/src/algorithms/PVT/libs/nmea_printer.cc
index 6e0a163a9..dd68ad58f 100644
--- a/src/algorithms/PVT/libs/nmea_printer.cc
+++ b/src/algorithms/PVT/libs/nmea_printer.cc
@@ -55,7 +55,7 @@ Nmea_Printer::Nmea_Printer(const std::string& filename,
                                 {
                                     if (!fs::create_directory(new_folder, ec))
                                         {
-                                            std::cout << "Could not create the " << new_folder << " folder.\n";
+                                            std::cout << "Could not create the " << new_folder << " folder." << std::endl;
                                             nmea_base_path = full_path.string();
                                         }
                                 }
@@ -69,7 +69,7 @@ Nmea_Printer::Nmea_Printer(const std::string& filename,
 
             if ((nmea_base_path != ".") and (d_flag_nmea_output_file == true))
                 {
-                    std::cout << "NMEA files will be stored at " << nmea_base_path << '\n';
+                    std::cout << "NMEA files will be stored at " << nmea_base_path << std::endl;
                 }
 
             nmea_base_path = nmea_base_path + fs::path::preferred_separator;
@@ -83,7 +83,7 @@ Nmea_Printer::Nmea_Printer(const std::string& filename,
                 }
             else
                 {
-                    std::cout << "File " << nmea_filename << " cannot be saved. Wrong permissions?\n";
+                    std::cout << "File " << nmea_filename << " cannot be saved. Wrong permissions?" << std::endl;
                 }
         }
 
@@ -118,18 +118,18 @@ Nmea_Printer::~Nmea_Printer()
         }
     catch (const std::ofstream::failure& e)
         {
-            std::cerr << "Problem closing NMEA dump file: " << nmea_filename << '\n';
+            std::cerr << "Problem closing NMEA dump file: " << nmea_filename << std::endl;
         }
     catch (const std::exception& e)
         {
-            std::cerr << e.what() << '\n';
+            std::cerr << e.what() << std::endl;
         }
     if (pos == 0)
         {
             errorlib::error_code ec;
             if (!fs::remove(fs::path(nmea_filename), ec))
                 {
-                    std::cerr << "Problem removing NMEA temporary file: " << nmea_filename << '\n';
+                    std::cerr << "Problem removing NMEA temporary file: " << nmea_filename << std::endl;
                 }
         }
     try
@@ -138,7 +138,7 @@ Nmea_Printer::~Nmea_Printer()
         }
     catch (const std::exception& e)
         {
-            std::cerr << e.what() << '\n';
+            std::cerr << e.what() << std::endl;
         }
 }
 
@@ -212,14 +212,12 @@ bool Nmea_Printer::Print_Nmea_Line(const Rtklib_Solver* const pvt_data, bool pri
         {
             try
                 {
-                    // GPRMC
-                    nmea_file_descriptor << GPRMC;
-                    // GPGGA (Global Positioning System Fixed Data)
-                    nmea_file_descriptor << GPGGA;
-                    // GPGSA
-                    nmea_file_descriptor << GPGSA;
-                    // GPGSV
-                    nmea_file_descriptor << GPGSV;
+                    nmea_file_descriptor
+		      << GPRMC
+		      << GPGGA // GPGGA (Global Positioning System Fixed Data)
+		      << GPGSA
+		      << GPGSV
+		      << std::flush;
                 }
             catch (const std::exception& ex)
                 {
@@ -417,7 +415,7 @@ std::string Nmea_Printer::get_GPGSA() const
 std::string Nmea_Printer::get_GPGSV() const
 {
     // GSV-GNSS Satellites in View
-    // $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71
+    // $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42,1*71
     // Notice that NMEA 2.1 only supports 12 channels
     std::stringstream sentence_str;
     std::array<unsigned char, 1024> buff{};