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use of string_view in as<T> method (#1187)

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Address Issue #881, allowing use of string_view in the as<XX> method on
options.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Philip Top
2025-08-09 07:42:18 -07:00
committed by GitHub
parent bb9bd85e3b
commit dfd3d90078
2 changed files with 38 additions and 2 deletions
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34
tests/OptionTypeTest.cpp
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@@ -385,6 +385,40 @@ TEST_CASE_METHOD(TApp, "stringLikeTests", "[optiontype]") {
CHECK("bca" == m_type.m_value);
}
#if CLI11_HAS_FILESYSTEM
#include <string_view>
// test code from https://github.com/CLIUtils/CLI11/issues/881
// https://github.com/Jean1995
TEST_CASE_METHOD(TApp, "AsStringView", "[app]") {
app.add_option("--input", "input option")->default_val("optA")->check(CLI::IsMember({"optA", "optB", "optC"}));
args = {};
run();
auto inputStr = app["--input"]->as<std::string_view>();
CHECK(inputStr == "optA");
args = {"--input", "optC"};
run();
inputStr = app["--input"]->as<std::string_view>();
CHECK(inputStr == "optC");
}
#endif
TEST_CASE_METHOD(TApp, "AsStringRef", "[app]") {
app.add_option("--input", "input option")->default_val("optA")->check(CLI::IsMember({"optA", "optB", "optC"}));
args = {};
run();
const std::string &inputStr = app["--input"]->as<std::string>();
CHECK(inputStr == "optA");
args = {"--input", "optC"};
run();
const std::string &inputStr2 = app["--input"]->as<std::string>();
CHECK(inputStr2 == "optC");
}
TEST_CASE_METHOD(TApp, "VectorExpectedRange", "[optiontype]") {
std::vector<std::string> strvec;