From 815467ae72f8c233fa0cd24e4e7f7e435847462d Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Wed, 14 Sep 2022 21:15:12 +0200
Subject: [PATCH] Fix Rinex printer for GPS L1 + Gal E6

---
 src/algorithms/PVT/libs/rinex_printer.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/algorithms/PVT/libs/rinex_printer.cc b/src/algorithms/PVT/libs/rinex_printer.cc
index d64ee7054..c7701d538 100644
--- a/src/algorithms/PVT/libs/rinex_printer.cc
+++ b/src/algorithms/PVT/libs/rinex_printer.cc
@@ -1373,7 +1373,7 @@ void Rinex_Printer::log_rinex_nav_gps_nav(int type_of_rx, const std::map<int32_t
             log_rinex_nav(navMixFile, new_eph, new_gal_eph);
             break;
         case 107:  // GPS L1 C/A + Galileo E6B
-            if (navMixFile.is_open())
+            if (navMixFile.tellp() != 0)
                 {
                     log_rinex_nav(navMixFile, new_eph, new_gal_eph);
                 }
@@ -1440,7 +1440,7 @@ void Rinex_Printer::log_rinex_nav_gal_nav(int type_of_rx, const std::map<int32_t
             log_rinex_nav(navMixFile, new_eph, new_gal_eph);
             break;
         case 107:  // GPS L1 C/A + Galileo E6B
-            if (navMixFile.is_open())
+            if (navMixFile.tellp() != 0)
                 {
                     log_rinex_nav(navMixFile, new_eph, new_gal_eph);
                 }