Add Github Actions CI (#464)

This replaces the old Travis CI builds with Github Actions that test on both Ubuntu and MacOS, with both Clang and GCC. The builds on macOS also run the tests and some other programs, on Ubuntu OpenCL is not working at the moment. Because these tests use new/different compilers, I fixed a few warnings and errors along the way.

10 files changed, 20 insertions, 11 deletions

diff --git a/samples/cache.c b/samples/cache.c
index 980c7cf3..2a48c321 100644
--- a/samples/cache.c
+++ b/samples/cache.c
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <time.h>
 
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
diff --git a/samples/dgemv.c b/samples/dgemv.c
index 975cb7ac..b579b25a 100644
--- a/samples/dgemv.c
+++ b/samples/dgemv.c
@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
diff --git a/samples/dtrsm.cpp b/samples/dtrsm.cpp
index c558d1f5..e207e5d3 100644
--- a/samples/dtrsm.cpp
+++ b/samples/dtrsm.cpp
@@ -24,8 +24,9 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
-#define CL_HPP_TARGET_OPENCL_VERSION 210
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_HPP_TARGET_OPENCL_VERSION 120
+#define CL_HPP_MINIMUM_OPENCL_VERSION 120
+#define CL_TARGET_OPENCL_VERSION 120
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/haxpy.c b/samples/haxpy.c
index 4f2bb400..ad3eabae 100644
--- a/samples/haxpy.c
+++ b/samples/haxpy.c
@@ -18,6 +18,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
diff --git a/samples/samax.c b/samples/samax.c
index 36e78846..27a8f133 100644
--- a/samples/samax.c
+++ b/samples/samax.c
@@ -19,7 +19,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#define CL_TARGET_OPENCL_VERSION 110
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
@@ -84,7 +84,7 @@ int main(void) {
   clEnqueueReadBuffer(queue, device_output, CL_TRUE, 0, 1*sizeof(unsigned int), host_output, 0, NULL, NULL);
 
   // Example completed. See "clblast_c.h" for status codes (0 -> success).
-  printf("Completed iSAMAX with status %d: array of %d values with staircases from 0..9 repeated, max at index %zu with value %.0lf\n",
+  printf("Completed iSAMAX with status %d: array of %zu values with staircases from 0..9 repeated, max at index %u with value %.0lf\n",
          status, n, host_output[0], host_input[host_output[0]]);
 
   // Clean-up
diff --git a/samples/sasum.c b/samples/sasum.c
index 78377336..36efef4c 100644
--- a/samples/sasum.c
+++ b/samples/sasum.c
@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
diff --git a/samples/sgemm.c b/samples/sgemm.c
index 92f3057d..df105f17 100644
--- a/samples/sgemm.c
+++ b/samples/sgemm.c
@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#define CL_TARGET_OPENCL_VERSION 120
 #define CL_USE_DEPRECATED_OPENCL_1_2_APIS // to disable deprecation warnings
 
 // Includes the CLBlast library (C interface)
diff --git a/samples/sgemm.cpp b/samples/sgemm.cpp
index 534ffa78..f2acfff6 100644
--- a/samples/sgemm.cpp
+++ b/samples/sgemm.cpp
@@ -25,8 +25,9 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
-#define CL_HPP_TARGET_OPENCL_VERSION 210
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_HPP_TARGET_OPENCL_VERSION 120
+#define CL_HPP_MINIMUM_OPENCL_VERSION 120
+#define CL_TARGET_OPENCL_VERSION 120
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/sgemm_batched.cpp b/samples/sgemm_batched.cpp
index a839d305..d17d31c3 100644
--- a/samples/sgemm_batched.cpp
+++ b/samples/sgemm_batched.cpp
@@ -25,8 +25,9 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
-#define CL_HPP_TARGET_OPENCL_VERSION 210
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_HPP_TARGET_OPENCL_VERSION 120
+#define CL_HPP_MINIMUM_OPENCL_VERSION 120
+#define CL_TARGET_OPENCL_VERSION 120
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/tuning_api.cpp b/samples/tuning_api.cpp
index 7d7294ad..a9968101 100644
--- a/samples/tuning_api.cpp
+++ b/samples/tuning_api.cpp
@@ -21,8 +21,9 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
-#define CL_HPP_TARGET_OPENCL_VERSION 210
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_HPP_TARGET_OPENCL_VERSION 120
+#define CL_HPP_MINIMUM_OPENCL_VERSION 120
+#define CL_TARGET_OPENCL_VERSION 120
 #include "opencl.hpp"
 
 // Includes the CLBlast library
@@ -66,7 +67,7 @@ int main() {
 
   // Tuning completed. See "clblast.h" for status codes (0 -> success).
   printf("Completed TuneCopy with status %d (0 == OK), found parameters:\n", static_cast<int>(status));
-  for (const auto parameter: parameters) {
+  for (const auto &parameter: parameters) {
     printf(">  %s = %zu\n", parameter.first.c_str(), parameter.second);
   }