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Enhance Rcpp::Nullable::as with explicit cast (Closes #1470) #1471

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Merged
eddelbuettel merged 5 commits into from
Apr 13, 2026
+26 −2
Merged

Enhance Rcpp::Nullable::as with explicit cast (Closes #1470) #1471

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4c40ad4
Enhance Rcpp::Nullable::as with explicit cast (Closes #1470)
eddelbuettel Apr 8, 2026
8215783
Add operator T
eddelbuettel Apr 9, 2026
4422a79
Conditrion nullable<String> test on R 4.3.0 or later
eddelbuettel Apr 9, 2026
9714763
Move the conditional to operator T()
eddelbuettel Apr 9, 2026
8dcc96b
Hide Nullable::operatorT() behind a #define
eddelbuettel Apr 12, 2026
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Conditrion nullable<String> test on R 4.3.0 or later
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@eddelbuettel
eddelbuettel committed Apr 9, 2026
commit 4422a79f6a6dcf429edaeb25fd77b18fb64a387d
2 changes: 2 additions & 0 deletions inst/tinytest/cpp/misc.cpp
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Expand Up @@ -217,13 +217,15 @@ SEXP testNullableIsUsable(const Nullable<NumericMatrix>& M) {
}
}

#if R_VERSION > R_Version(4,3,0)
// [[Rcpp::export]]
String testNullableString(Rcpp::Nullable<Rcpp::String> param = R_NilValue) {
if (param.isNotNull())
return String(param);
else
return String("");
}
#endif

// [[Rcpp::export]]
void messageWrapper(SEXP s) {
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8 changes: 5 additions & 3 deletions inst/tinytest/test_misc.R
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Expand Up @@ -168,9 +168,11 @@ expect_equal( testNullableIsUsable(M), M)
# test.NullableIsUsableFalse <- function() {
expect_true(is.null(testNullableIsUsable(NULL)))

# test.NullableString <- function() {
expect_equal(testNullableString(), "")
expect_equal(testNullableString("blah"), "blah")
## test.NullableString <- function() {
if (getRversion() > "4.3.0") {
expect_equal(testNullableString(), "")
expect_equal(testNullableString("blah"), "blah")
}

# test.bib <- function() {
expect_true(nchar(Rcpp:::bib()) > 0, info="bib file")
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