Add clang-format configuration and formatting checks (#77)

* add .clang-format

* apply format

* add format checker and spelling workflow

* update action name

Author: ZedongPeng

.clang-format

@@ -0,0 +1,46 @@
+BasedOnStyle: LLVM
+
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+
+ColumnLimit: 120
+
+BreakBeforeBraces: Allman
+
+PointerAlignment: Right
+DerivePointerAlignment: false
+
+BinPackParameters: false
+BinPackArguments: false
+
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+
+IndentCaseLabels: true
+InsertNewlineAtEOF: true
+
+SortIncludes: true
+
+ReflowComments: false
+AlignOperands: false
+
+StatementMacros:
+  - ASSERT
+  - CHECK
+  - REQUIRE
+  - ENSURE
+  - EXPECT
+  - CUDA_CHECK
+  - CUBLAS_CHECK
+  - CUSPARSE_CHECK
+
+AttributeMacros: 
+  - __global__
+  - __device__
+  - __host__
+  - __shared__
+  - __constant__
+  - __managed__
+  - __launch_bounds__

.github/workflows/check-clang-format.yml

@@ -0,0 +1,21 @@
+name: Format
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Clang Format Check
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: DoozyX/clang-format-lint-action@v0.20
+      with:
+        source: '.'
+        extensions: 'h,c,cu'
+        clangFormatVersion: 20

.github/workflows/spelling.yml

@@ -0,0 +1,24 @@
+name: Spelling
+
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+env:
+  CLICOLOR: 1
+
+jobs:
+  spelling:
+    name: Spell Check with Typos
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Actions Repository
+      uses: actions/checkout@v5
+    - name: Spell Check Repo
+      uses: crate-ci/typos@v1.42.3

include/cupdlpx.h

@@ -24,22 +24,19 @@ extern "C"
 #endif
 
     // create an lp_problem_t from a matrix descriptor
-    lp_problem_t *create_lp_problem(
-        const double *objective_c,
-        const matrix_desc_t *A_desc,
-        const double *con_lb,
-        const double *con_ub,
-        const double *var_lb,
-        const double *var_ub,
-        const double *objective_constant);
+    lp_problem_t *create_lp_problem(const double *objective_c,
+                                    const matrix_desc_t *A_desc,
+                                    const double *con_lb,
+                                    const double *con_ub,
+                                    const double *var_lb,
+                                    const double *var_ub,
+                                    const double *objective_constant);
 
     // Set up initial primal and dual solution for an lp_problem_t
     void set_start_values(lp_problem_t *prob, const double *primal, const double *dual);
 
     // solve the LP problem using PDHG
-    cupdlpx_result_t *solve_lp_problem(
-        lp_problem_t *prob,
-        const pdhg_parameters_t *params);
+    cupdlpx_result_t *solve_lp_problem(lp_problem_t *prob, const pdhg_parameters_t *params);
 
     // parameter
     void set_default_parameters(pdhg_parameters_t *params);
@@ -50,4 +47,4 @@ extern "C"
 
 #ifdef __cplusplus
 } // extern "C"
-#endif
+#endif