fix(unused): handle unused variables in the project

Author: krishnakumarg1984

cmake_files/using.cc

@@ -8,6 +8,6 @@ class SARA : public std::vector<int> {
 };
 
 int main(int, char const**) {
-  SARA s = {0, 0};
+  [[maybe_unused]] SARA s = {0, 0};
   return 0;
 }

cpp/examples/forward_backward/l2_inpainting.cc

@@ -104,7 +104,7 @@ int main(int argc, char const **argv) {
   // Here, we default to (y, Φx/ν - y)
   Vector init_map = Vector::Ones(image.size()) * x_sigma;
   Vector init_res = y - (sampling * init_map);
-  const std::tuple<Vector, Vector> warm_start = {init_map, init_res};
+  // [[maybe_unused]] const std::tuple<Vector, Vector> warm_start = {init_map, init_res};
   auto const diagnostic = fb();
   SOPT_HIGH_LOG("Forward backward returned {}", diagnostic.good);
 

cpp/tests/padmm.cc

@@ -29,7 +29,7 @@ TEST_CASE("Proximal ADMM with ||x - x0||_2 functions", "[padmm][integration]") {
 
   t_Matrix const mId = -t_Matrix::Identity(N, N);
 
-  t_Vector const translation = t_Vector::Ones(N) * 5;
+  // [[maybe_unused]] t_Vector const translation = t_Vector::Ones(N) * 5;
   auto const padmm =
       algorithm::ProximalADMM<Scalar>(g0, g1, t_Vector::Zero(N)).Phi(mId).itermax(3000).gamma(0.01);
   auto const result = padmm();