make example compile lines easier (#754)

* make example compile lines easier

Author: shssf

dpnp/backend/examples/example3.cpp

@@ -30,7 +30,8 @@
  * to calculate cos of input vector elements
  *
  * Possible compile line:
- * clang++ -g -fPIC examples/example3.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example3
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example3.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example3
  *
  */
 

dpnp/backend/examples/example5.cpp

@@ -23,6 +23,17 @@
 // THE POSSIBILITY OF SUCH DAMAGE.
 //*****************************************************************************
 
+/**
+ * Example 5.
+ *
+ * This example shows simple usage of the DPNP C++ Backend RNG library
+ *
+ * Possible compile line:
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example5.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example5
+ *
+ */
+
 #include <iostream>
 
 #include <dpnp_iface.hpp>

dpnp/backend/examples/example7.cpp

@@ -30,7 +30,8 @@
  * to calculate eigenvalues and eigenvectors of a symmetric matrix
  *
  * Possible compile line:
- * clang++ -g -fPIC examples/example7.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example7
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example7.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example7
  *
  */
 

dpnp/backend/examples/example8.cpp

@@ -23,7 +23,16 @@
 // THE POSSIBILITY OF SUCH DAMAGE.
 //*****************************************************************************
 
-// clang++ -g -fPIC examples/example8.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example8
+/**
+ * Example 9.
+ *
+ * TODO explanation of the example
+ *
+ * Possible compile line:
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example8.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example8
+ *
+ */
 #include <iostream>
 
 #include "dpnp_iface.hpp"

dpnp/backend/examples/example9.cpp

@@ -30,7 +30,8 @@
  * to calculate sum of the given elements vector
  *
  * Possible compile line:
- * clang++ dpnp/backend/examples/example9.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example9
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example9.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example9
  *
  */
 

dpnp/backend/examples/example_bs.cpp

@@ -30,8 +30,8 @@
  * to calculate black scholes algorithm like in Python version
  *
  * Possible compile line:
- * clang++ -g -fPIC dpnp/backend/examples/example_bs.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example_bs
- *
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example_bs.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example_bs
  */
 
 #include <cmath>

dpnp/backend/examples/example_experimental_iface.cpp

@@ -29,8 +29,8 @@
  * This example shows how to get a runtime pointer from DPNP C++ Backend library
  *
  * Possible compile line:
- * clang++ examples/example_experimental_iface.cpp -o example_experimental_iface -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c
- *
+ * . /opt/intel/oneapi/setvars.sh
+ * g++ -g dpnp/backend/examples/example_experimental_iface.cpp -Idpnp -Idpnp/backend/include -Ldpnp -Wl,-rpath='$ORIGIN'/dpnp -ldpnp_backend_c -o example_experimental_iface
  */
 
 #include <iostream>