From 6218b68542ef6c752cf6fd71ac31c899714c6db7 Mon Sep 17 00:00:00 2001
From: Greg Eisenhauer <eisen@cc.gatech.edu>
Date: Fri, 11 Jun 2021 09:52:15 -0400
Subject: [PATCH] Add const char* entry to ADIOS constructors to avoid ugliness

---
 bindings/CXX11/adios2/cxx11/ADIOS.cpp           |  2 ++
 bindings/CXX11/adios2/cxx11/ADIOS.h             |  8 ++++++++
 testing/adios2/interface/TestADIOSInterface.cpp | 10 ++++++++++
 3 files changed, 20 insertions(+)

diff --git a/bindings/CXX11/adios2/cxx11/ADIOS.cpp b/bindings/CXX11/adios2/cxx11/ADIOS.cpp
index ec0a16ba03..d8cc46639a 100644
--- a/bindings/CXX11/adios2/cxx11/ADIOS.cpp
+++ b/bindings/CXX11/adios2/cxx11/ADIOS.cpp
@@ -19,6 +19,8 @@ ADIOS::ADIOS(const std::string &configFile, const bool debugMode)
 {
 }
 
+ADIOS::ADIOS(const char *configFile) : ADIOS(std::string(configFile), "C++") {}
+
 ADIOS::ADIOS(const bool debugMode) : ADIOS("", "C++") {}
 
 ADIOS::ADIOS(const std::string &configFile, const std::string &hostLanguage,
diff --git a/bindings/CXX11/adios2/cxx11/ADIOS.h b/bindings/CXX11/adios2/cxx11/ADIOS.h
index 4304631ce8..da8d739b34 100644
--- a/bindings/CXX11/adios2/cxx11/ADIOS.h
+++ b/bindings/CXX11/adios2/cxx11/ADIOS.h
@@ -99,6 +99,14 @@ class ADIOS
      */
     ADIOS(const std::string &configFile, const bool debugMode = true);
 
+    /**
+     * Starting point for non-MPI serial apps. Creates an ADIOS object allowing
+     * a runtime config file.
+     * @param configFile runtime config file
+     * @exception std::invalid_argument if user input is incorrect
+     */
+    ADIOS(const char *configFile);
+
     /**
      * Starting point for non-MPI apps. Creates an ADIOS object
      * @param debugMode is deprecated and has no effect on library behavior
diff --git a/testing/adios2/interface/TestADIOSInterface.cpp b/testing/adios2/interface/TestADIOSInterface.cpp
index eef00f75ef..d5192cc9a3 100644
--- a/testing/adios2/interface/TestADIOSInterface.cpp
+++ b/testing/adios2/interface/TestADIOSInterface.cpp
@@ -23,6 +23,16 @@ TEST(ADIOSInterface, MPICommRemoved)
 
 #endif
 
+TEST(ADIOSInterface, BADConfigFile)
+{
+    EXPECT_THROW(adios2::ADIOS adios("notthere.xml");
+                 adios2::IO io = adios.DeclareIO("TestIO");
+
+                 adios2::Engine engine =
+                     io.Open("test.bp", adios2::Mode::Write);
+                 , std::logic_error);
+}
+
 /** ADIOS2_CXX11_API
  */
 class ADIOS2_CXX11_API : public ::testing::Test