updated README, add a test code.

.github/workflows/actions.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@main
       - name: Homebrew
-        run: brew install qt6
+        run: brew install qt6 pkg-config
       - name: build
         run: |
           qmake CONFIG+=release
@@ -25,6 +25,7 @@ jobs:
           ./cpi tests/unique_ptr.cpp
           ./cpi tests/optional.cpp
           ./cpi tests/if_initializer.cpp
+          ./cpi test/dgemm.cpp
       - name: error tests
         run: |
           ./cpi tests/error_code.cpp
@@ -38,7 +39,7 @@ jobs:
       - name: apt
         run: |
           sudo apt-get update -qq
-          sudo apt-get install -y --no-install-recommends g++ make qmake6 qt6-base-dev qt6-base-dev-tools
+          sudo apt-get install -y --no-install-recommends g++ make qmake6 qt6-base-dev qt6-base-dev-tools pkg-config
       - name: build
         run: |
           qmake6 CONFIG+=release
@@ -53,6 +54,7 @@ jobs:
           ./cpi tests/if_initializer.cpp
           ./cpi tests/ranges.cpp
           ./cpi tests/concept_add.cpp
+          ./cpi test/dgemm.cpp
       - name: error tests
         run: |
           ./cpi tests/error_code.cpp
@@ -66,7 +68,7 @@ jobs:
         run: |
           sudo apt-get update -qq
           sudo apt purge -y gcc g++
-          sudo apt-get install -y --no-install-recommends clang make qmake6 qt6-base-dev qt6-base-dev-tools
+          sudo apt-get install -y --no-install-recommends clang make qmake6 qt6-base-dev qt6-base-dev-tools pkg-config
       - name: build
         run: |
           qmake6 -spec linux-clang CONFIG+=release
@@ -79,6 +81,7 @@ jobs:
           ./cpi tests/unique_ptr.cpp
           ./cpi tests/optional.cpp
           ./cpi tests/if_initializer.cpp
+          ./cpi test/dgemm.cpp
       - name: error tests
         run: |
           ./cpi tests/error_code.cpp
@@ -91,7 +94,7 @@ jobs:
       - name: apt
         run: |
           sudo apt-get update -qq
-          sudo apt-get install -y --no-install-recommends g++ make qmake6 qt6-base-dev qt6-base-dev-tools
+          sudo apt-get install -y --no-install-recommends g++ make qmake6 qt6-base-dev qt6-base-dev-tools pkg-config
       - name: build
         run: |
           qmake6 CONFIG+=release
@@ -106,6 +109,7 @@ jobs:
           ./cpi tests/if_initializer.cpp
           ./cpi tests/ranges.cpp
           ./cpi tests/concept_add.cpp
+          ./cpi test/dgemm.cpp
       - name: error tests
         run: |
           ./cpi tests/error_code.cpp
@@ -119,7 +123,7 @@ jobs:
         run: |
           sudo apt-get update -qq
           sudo apt purge -y gcc g++
-          sudo apt-get install -y --no-install-recommends clang make qmake6 qt6-base-dev qt6-base-dev-tools
+          sudo apt-get install -y --no-install-recommends clang make qmake6 qt6-base-dev qt6-base-dev-tools pkg-config
       - name: build
         run: |
           qmake6 -spec linux-clang CONFIG+=release
@@ -132,6 +136,7 @@ jobs:
           ./cpi tests/unique_ptr.cpp
           ./cpi tests/optional.cpp
           ./cpi tests/if_initializer.cpp
+          ./cpi test/dgemm.cpp
       - name: error tests
         run: |
           ./cpi tests/error_code.cpp

.github/workflows/build-relase.yml

@@ -58,7 +58,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           tag_name: ${{ github.ref }}
-          release_name: Release ${{ github.ref }}
+          release_name: Cpi version ${{ github.ref }} release
           draft: false
           prerelease: false
 

README.md

@@ -139,6 +139,47 @@ int main(int argc, char *argv[])
   1.7320
 ```
 
+Furthermore, pkg-config command can be used for *CompileOptions*.
+
+```cpp
+#include <cblas.h>
+#include <iostream>
+
+int main()
+{
+    // 2x2 Matrix
+    int M = 2, N = 2, K = 2;
+    double A[4] = {1.0, 2.0, 3.0, 4.0};
+    double B[4] = {5.0, 6.0, 7.0, 8.0};
+    double C[4];
+
+    // General Matrix-Matrix multiplication
+    cblas_dgemm(CblasRowMajor, CblasNoTrans, CblasNoTrans,
+        M, N, K,
+        1.0, A, K, B, N,
+        0.0, C, N);
+
+    // Print results
+    std::cout << "Result of A * B = C:" << std::endl;
+    for (int i = 0; i < 2; ++i) {
+        for (int j = 0; j < 2; ++j) {
+            std::cout << C[i * 2 + j] << " ";
+        }
+        std::cout << std::endl;
+    }
+    return 0;
+}
+
+// CompileOptions: `pkg-config --cflags --libs openblas`
+```
+
+```sh
+ $ cpi dgemm.cpp
+ Result of A * B = C:
+ 19 22
+ 43 50
+```
+
 #### Running like a scripting language
 Adding a shebang, save as *hello.cpps*. No longer compiled in a C++ compiler successfully.
 

tests/dgemm.cpp

@@ -0,0 +1,29 @@
+#include <cblas.h>
+#include <iostream>
+
+int main()
+{
+    // 2x2 Matrix
+    int M = 2, N = 2, K = 2;
+    double A[4] = {1.0, 2.0, 3.0, 4.0};
+    double B[4] = {5.0, 6.0, 7.0, 8.0};
+    double C[4];
+
+    // General Matrix-Matrix multiplication
+    cblas_dgemm(CblasRowMajor, CblasNoTrans, CblasNoTrans,
+        M, N, K,
+        1.0, A, K, B, N,
+        0.0, C, N);
+
+    // Print results
+    std::cout << "Result of A * B = C:" << std::endl;
+    for (int i = 0; i < 2; ++i) {
+        for (int j = 0; j < 2; ++j) {
+            std::cout << C[i * 2 + j] << " ";
+        }
+        std::cout << std::endl;
+    }
+    return 0;
+}
+
+// CompileOptions: `pkg-config --cflags --libs openblas`