From 66c4e20fd29218164de30679bc0b041ea7a05deb Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Thu, 23 May 2019 20:40:29 +0100
Subject: [PATCH] Fix shader example build / spotted by clang

---
 examples/OpenGLWindow/LoadShader.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/OpenGLWindow/LoadShader.cpp b/examples/OpenGLWindow/LoadShader.cpp
index ef18e58ed..4766d1383 100644
--- a/examples/OpenGLWindow/LoadShader.cpp
+++ b/examples/OpenGLWindow/LoadShader.cpp
@@ -44,7 +44,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, const char *szFragmentProg)
 		return 0;
 		glDeleteShader(hVertexShader);
 		glDeleteShader(hFragmentShader);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
 	assert(glGetError() == GL_NO_ERROR);
@@ -62,7 +62,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, const char *szFragmentProg)
 		exit(EXIT_FAILURE);
 		glDeleteShader(hVertexShader);
 		glDeleteShader(hFragmentShader);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
 	assert(glGetError() == GL_NO_ERROR);
@@ -96,7 +96,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, const char *szFragmentProg)
 		printf("Warning/Error in GLSL shader:\n");
 		printf("%s\n", infoLog);
 		glDeleteProgram(hReturn);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
 	return hReturn;