From 05ab43ed58bfb18c2ac97589c5a1efda7fbbd9b5 Mon Sep 17 00:00:00 2001
From: Kyle Lutz <kyle.r.lutz@gmail.com>
Date: Wed, 3 Aug 2016 20:16:16 -0700
Subject: [PATCH] Cast index argument to cl_uint in kernel::get_arg_info()

This casts the 'index' argument in kernel::get_arg_info() to cl_uint
in order to match the signature for clGetKernelArgInfo(). This fixes
the "conversion from 'size_t' to 'cl_uint', possible loss of data"
compiler warning.
---
 include/boost/compute/kernel.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/boost/compute/kernel.hpp b/include/boost/compute/kernel.hpp
index 9e6e0953..caa1e79b 100644
--- a/include/boost/compute/kernel.hpp
+++ b/include/boost/compute/kernel.hpp
@@ -188,7 +188,9 @@ public:
     template<class T>
     T get_arg_info(size_t index, cl_kernel_arg_info info) const
     {
-        return detail::get_object_info<T>(clGetKernelArgInfo, m_kernel, info, index);
+        return detail::get_object_info<T>(
+            clGetKernelArgInfo, m_kernel, info, static_cast<cl_uint>(index)
+        );
     }
 
     /// \overload