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Accept integer literals in store_into #363

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Accept integer literals in store_into #363

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18 changes: 16 additions & 2 deletions include/argparse/argparse.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -702,7 +702,14 @@ class Argument {
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<T>(m_default_value);
try
{
var = std::any_cast<T>(m_default_value);
}
catch (...)
{
var = static_cast<T>(std::any_cast<int>(m_default_value));
}
}
action([&var](const auto &s) {
var = details::parse_number<T, details::radix_10>()(s);
Expand All @@ -712,7 +719,14 @@ class Argument {

auto &store_into(double &var) {
if (m_default_value.has_value()) {
var = std::any_cast<double>(m_default_value);
try
{
var = std::any_cast<double>(m_default_value);
}
catch (...)
{
var = std::any_cast<int>(m_default_value);
}
}
action([&var](const auto &s) {
var = details::parse_number<double, details::chars_format::general>()(s);
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8 changes: 8 additions & 0 deletions test/test_store_into.cpp
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Expand Up @@ -286,3 +286,11 @@ TEST_CASE("Test store_into(set of string), default value, multi valued, specifie
}
}

TEST_CASE("Test store_into other types with integer default" * test_suite("store_into"))
{
argparse::ArgumentParser program("test");
double res = -1;
REQUIRE_NOTHROW(program.add_argument("--double-opt").default_value(3).store_into(res));
uint8_t u = 25;
REQUIRE_NOTHROW(program.add_argument("--uint8_t-opt").default_value(3).store_into(u));
}