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Add support for general integer types in store_into.
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abellgithub committed Apr 17, 2024
1 parent 9550b0a commit d141b8d
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Showing 2 changed files with 39 additions and 2 deletions.
5 changes: 3 additions & 2 deletions include/argparse/argparse.hpp
Original file line number Diff line number Diff line change
Expand Up @@ -698,9 +698,10 @@ class Argument {
return *this;
}

auto &store_into(int &var) {
template <typename T, typename std::enable_if<std::is_integral<T>::value>::type * = nullptr>
auto &store_into(T &var) {
if (m_default_value.has_value()) {
var = std::any_cast<int>(m_default_value);
var = std::any_cast<T>(m_default_value);
}
action([&var](const auto &s) {
var = details::parse_number<int, details::radix_10>()(s);
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36 changes: 36 additions & 0 deletions test/test_store_into.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,8 @@ TEST_CASE("Test store_into(bool), flag specified" *
REQUIRE(flag == true);
}

// int cases

TEST_CASE("Test store_into(int), no default value, non specified" *
test_suite("store_into")) {
argparse::ArgumentParser program("test");
Expand Down Expand Up @@ -57,6 +59,40 @@ TEST_CASE("Test store_into(int), default value, specified" *
REQUIRE(res == 5);
}

// integral cases

TEST_CASE("Test store_into(uint8_t), no default value, non specified" *
test_suite("store_into")) {
argparse::ArgumentParser program("test");
uint8_t res = 55;
program.add_argument("--int-opt").store_into(res);

program.parse_args({"./test.exe"});
REQUIRE(res == 55);
}

TEST_CASE("Test store_into(uint8_t), default value, non specified" *
test_suite("store_into")) {
argparse::ArgumentParser program("test");
uint8_t res = 55;
program.add_argument("--int-opt").default_value((uint8_t)3).store_into(res);

program.parse_args({"./test.exe"});
REQUIRE(res == 3);
}

TEST_CASE("Test store_into(uint8_t), default value, specified" *
test_suite("store_into")) {
argparse::ArgumentParser program("test");
uint8_t res = -1;
program.add_argument("--int-opt").default_value((uint8_t)3).store_into(res);

program.parse_args({"./test.exe", "--int-opt", "5"});
REQUIRE(res == 5);
}

// Double cases

TEST_CASE("Test store_into(double), no default value, non specified" *
test_suite("store_into")) {
argparse::ArgumentParser program("test");
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