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Simplify is_optional check

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This commit is contained in:
Stephan van Veen 2019-05-18 11:44:21 +02:00
parent c03e34f981
commit 4da8454a5a
1 changed files with 1 additions and 7 deletions
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8
include/argparse.hpp
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@ -73,12 +73,6 @@ using enable_if_container = std::enable_if_t<is_container_v<T>, T>;
template <typename T> template <typename T>
using enable_if_not_container = std::enable_if_t<!is_container_v<T>, T>; using enable_if_not_container = std::enable_if_t<!is_container_v<T>, T>;
// Check if string (haystack) starts with a substring (needle)
bool starts_with(const std::string& haystack, const std::string& needle) {
return needle.length() <= haystack.length()
&& std::equal(needle.begin(), needle.end(), haystack.begin());
}
} }
class Argument { class Argument {
@ -180,7 +174,7 @@ public:
private: private:
// If an argument starts with "-" or "--", then it's optional // If an argument starts with "-" or "--", then it's optional
static bool is_optional(const std::string& aName) { static bool is_optional(const std::string& aName) {
return (starts_with(aName, "--") || starts_with(aName, "-")); return (!aName.empty() && aName[0] == '-');
} }
/* /*