From a1189d3c3b099c774ad4411d39be62aa75e1cc19 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sun, 30 Oct 2016 00:37:28 +0200
Subject: [PATCH] Allow specifying custom exit() function

---
 CMakeLists.txt                 | 4 ++--
 application/argumentparser.cpp | 8 +++++++-
 application/argumentparser.h   | 2 ++
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ce0b23..e23b73f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -111,8 +111,8 @@ set(META_APP_AUTHOR "Martchus")
 set(META_APP_URL "https://github.com/${META_APP_AUTHOR}/${META_PROJECT_NAME}")
 set(META_APP_DESCRIPTION "Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities")
 set(META_VERSION_MAJOR 4)
-set(META_VERSION_MINOR 2)
-set(META_VERSION_PATCH 1)
+set(META_VERSION_MINOR 3)
+set(META_VERSION_PATCH 0)
 
 # find required 3rd party libraries
 include(3rdParty)
diff --git a/application/argumentparser.cpp b/application/argumentparser.cpp
index 2e4e17e..ca05999 100644
--- a/application/argumentparser.cpp
+++ b/application/argumentparser.cpp
@@ -33,6 +33,12 @@ const char *applicationVersion = nullptr;
 /// \brief Specifies the URL to the application website (used by ArgumentParser::printHelp()).
 const char *applicationUrl = nullptr;
 
+/*!
+ * \brief Specifies a function quit the application.
+ * \remarks Currently only used after printing Bash completion. Default is std::exit().
+ */
+void(*exitFunction)(int) = &exit;
+
 /// \cond
 
 inline bool notEmpty(const char *str)
@@ -429,7 +435,7 @@ void ArgumentParser::readArgs(int argc, const char * const *argv)
 
             if(completionMode) {
                 printBashCompletion(argc, argv, currentWordIndex, lastDetectedArgument);
-                exit(0); // prevent the applicaton to continue with the regular execution
+                exitFunction(0); // prevent the applicaton to continue with the regular execution
             }
         } else {
             // no arguments specified -> flag default argument as present if one is assigned
diff --git a/application/argumentparser.h b/application/argumentparser.h
index 3285abf..404e481 100644
--- a/application/argumentparser.h
+++ b/application/argumentparser.h
@@ -30,6 +30,8 @@ CPP_UTILITIES_EXPORT extern const char *applicationUrl;
     ::ApplicationUtilities::applicationVersion = APP_VERSION; \
     ::ApplicationUtilities::applicationUrl = APP_URL
 
+CPP_UTILITIES_EXPORT extern void(*exitFunction)(int);
+
 class Argument;
 class ArgumentParser;