fix utest build for some old gcc version

change the keyword from constexpr to const, update the code for
explicit type conversion and std::map's iterator.

Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/utests/vload_bench.cpp b/utests/vload_bench.cpp
index 37659961..a7703fcd 100644
--- a/utests/vload_bench.cpp
+++ b/utests/vload_bench.cpp
@@ -11,7 +11,7 @@ static double vload_bench(const char *kernelFunc, uint32_t N, uint32_t offset, b
   struct timeval start, end;
 
   // Setup kernel and buffers
-  std::string kernelName = kernelFunc + std::to_string(N);
+  std::string kernelName = kernelFunc + std::to_string((long long unsigned int)N);
   OCL_CALL (cl_kernel_init, "vload_bench.cl", kernelName.c_str(), SOURCE, NULL);
   //OCL_CREATE_KERNEL("compiler_array");
   buf_data[0] = (T*) malloc(sizeof(T) * n);
@@ -42,7 +42,7 @@ static double vload_bench(const char *kernelFunc, uint32_t N, uint32_t offset, b
     OCL_MAP_BUFFER(0);
     OCL_MAP_BUFFER(1);
     for (uint32_t i = 0; i < globals[0]; ++i) {
-      OCL_ASSERT(((T*)buf_data[0])[i + offset] == ((uint32_t*)buf_data[1])[i]);
+      OCL_ASSERT((uint32_t)(((T*)buf_data[0])[i + offset]) == ((uint32_t*)buf_data[1])[i]);
     }
     return 0;
   }