fix: install xml2 for coverage workflow

Author: jwood000

.github/workflows/test-coverage.yml

@@ -24,7 +24,9 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::covr
+          extra-packages: |
+            any::covr
+            any::xml2
           needs: coverage
 
       - name: Test coverage

DESCRIPTION

@@ -30,7 +30,15 @@ URL: https://jwood000.github.io/RcppAlgos/,
 BugReports: https://github.com/jwood000/RcppAlgos/issues
 LinkingTo: cpp11
 Imports: gmp, methods
-Suggests: testthat, partitions, microbenchmark, knitr, RcppBigIntAlgos, rmarkdown
+Suggests:
+    testthat,
+    partitions,
+    microbenchmark,
+    knitr,
+    RcppBigIntAlgos,
+    rmarkdown,
+    covr,
+    xml2
 Config/Needs/website: pkgdown
 License: GPL (>=2)
 SystemRequirements: gmp (>= 4.2.3)

src/ExposeClass.cpp

@@ -11,9 +11,7 @@
 static void Finalizer(SEXP ext) {
     if (TYPEOF(ext) != EXTPTRSXP) return;
 
-    auto* ptr =
-        reinterpret_cast<Iterator*>(R_ExternalPtrAddr(ext));
-
+    auto* ptr = reinterpret_cast<Iterator*>(R_ExternalPtrAddr(ext));
     if (!ptr) return;
 
     R_ClearExternalPtr(ext);