build in separate directory failure fix (#617)

* test for build in separate directory

* builds dir from ci variable

* using CI_PROJECT_DIR variable

* relarive build examples

* updated "time" version, suppressed "unused trait" warnings

.github/workflows/ci.yml

@@ -88,13 +88,13 @@ jobs:
           cd build
           cmake --build . --target examples
 
-      - name: Build examples with zenoh-c as subbroject and static library and in debug mode
+      - name: Build examples with zenoh-c as subbroject and static library and in debug mode and in separate directory
         shell: bash
         run: |
-          mkdir -p build_examples && cd build_examples
-          cmake ../examples -DCMAKE_BUILD_TYPE=Debug -DZENOHC_LIB_STATIC=TRUE
-          cmake --build . --config Debug
-          cd .. && rm -rf build_examples
+          mkdir -p ../build_examples
+          cmake -S examples -B ../build_examples -DCMAKE_BUILD_TYPE=Debug -DZENOHC_LIB_STATIC=TRUE
+          cmake --build ../build_examples --config Debug
+          rm -rf ../build_examples
 
       - name: Build examples with zenoh-c as installed package
         shell: bash

src/transmute.rs

@@ -14,48 +14,57 @@
 
 use std::mem::MaybeUninit;
 
+#[allow(dead_code)]
 pub(crate) trait CTypeRef: Sized {
     type CType;
     fn as_ctype_ref(&self) -> &Self::CType;
     fn as_ctype_mut(&mut self) -> &mut Self::CType;
 }
+#[allow(dead_code)]
 pub(crate) trait OwnedCTypeRef: Sized {
     type OwnedCType;
     fn as_owned_c_type_ref(&self) -> &Self::OwnedCType;
     fn as_owned_c_type_mut(&mut self) -> &mut Self::OwnedCType;
 }
+#[allow(dead_code)]
 pub(crate) trait LoanedCTypeRef: Sized {
     type LoanedCType;
     fn as_loaned_c_type_ref(&self) -> &Self::LoanedCType;
     fn as_loaned_c_type_mut(&mut self) -> &mut Self::LoanedCType;
 }
+#[allow(dead_code)]
 pub(crate) trait ViewCTypeRef: Sized {
     type ViewCType;
     fn as_view_c_type_ref(&self) -> &Self::ViewCType;
     fn as_view_c_type_mut(&mut self) -> &mut Self::ViewCType;
 }
+#[allow(dead_code)]
 pub(crate) trait RustTypeRef: Sized {
     type RustType;
     fn as_rust_type_ref(&self) -> &Self::RustType;
     fn as_rust_type_mut(&mut self) -> &mut Self::RustType;
 }
+#[allow(dead_code)]
 pub(crate) trait RustTypeRefUninit: Sized {
     type RustType;
     fn as_rust_type_mut_uninit(&mut self) -> &mut MaybeUninit<Self::RustType>;
 }
+#[allow(dead_code)]
 pub(crate) trait IntoRustType: Sized {
     type RustType;
     fn into_rust_type(self) -> Self::RustType;
 }
+#[allow(dead_code)]
 pub(crate) trait IntoCType: Sized {
     type CType;
     fn into_c_type(self) -> Self::CType;
 }
-
+#[allow(dead_code)]
 pub(crate) trait TakeRustType: Sized {
     type RustType;
     fn take_rust_type(&mut self) -> Self::RustType;
 }
+#[allow(dead_code)]
 pub(crate) trait TakeCType: Sized {
     type CType;
     fn take_c_type(&mut self) -> Self::CType;