use popl for command line arguments

samples/usm/999_bigusm/main.cpp

@@ -20,9 +20,9 @@
 // SOFTWARE.
 */
 
-#include <CL/opencl.hpp>
+#include <popl/popl.hpp>
 
-constexpr size_t BIG_ALLOC = 5ULL * 1024 * 1024 * 1024; // 5GB
+#include <CL/opencl.hpp>
 
 #define CL_MEM_FLAGS_INTEL 0x10001
 #define CL_MEM_ALLOW_UNRESTRICTED_SIZE_INTEL (1 << 23)
@@ -36,49 +36,34 @@ int main(
  int argc,
  char** argv )
 {
- bool printUsage = false;
  int platformIndex = 0;
  int deviceIndex = 0;
+ float numGB = 5.0f;
 
- if( argc < 1 )
- {
- printUsage = true;
- }
- else
  {
- for( size_t i = 1; i < argc; i++ )
- {
- if( !strcmp( argv[i], "-d" ) )
- {
- if( ++i < argc )
- {
- deviceIndex = strtol(argv[i], NULL, 10);
- }
- }
- else if( !strcmp( argv[i], "-p" ) )
- {
- if( ++i < argc )
- {
- platformIndex = strtol(argv[i], NULL, 10);
- }
- }
- else
- {
- printUsage = true;
- }
+ popl::OptionParser op("Supported Options");
+ op.add<popl::Value<int>>("p", "platform", "Platform Index", platformIndex, &platformIndex);
+ op.add<popl::Value<int>>("d", "device", "Device Index", deviceIndex, &deviceIndex);
+ op.add<popl::Value<float>>("s", "size", "Size to Allocate (GB)", numGB, &numGB);
+ bool printUsage = false;
+ try {
+ op.parse(argc, argv);
+ } catch (std::exception& e) {
+ fprintf(stderr, "Error: %s\n\n", e.what());
+ printUsage = true;
+ }
+
+ if (printUsage || !op.unknown_options().empty() || !op.non_option_args().empty()) {
+ fprintf(stderr,
+ "Usage: bigusm [options]\n"
+ "%s", op.help().c_str());
+ return -1;
  }
  }
- if( printUsage )
- {
- fprintf(stderr,
- "Usage: bigusm [options]\n"
- "Options:\n"
- " -d: Device Index (default = 0)\n"
- " -p: Platform Index (default = 0)\n"
- );
-
- return -1;
- }
+
+ printf("numGB = %f\n", numGB);
+
+ size_t BIG_ALLOC = numGB * 1024 * 1024 * 1024;
 
  std::vector<cl::Platform> platforms;
  cl::Platform::get(&platforms);