diff options
Diffstat (limited to 'louloulibs/utils')
-rw-r--r-- | louloulibs/utils/get_first_non_empty.cpp | 11 | ||||
-rw-r--r-- | louloulibs/utils/get_first_non_empty.hpp | 20 |
2 files changed, 31 insertions, 0 deletions
diff --git a/louloulibs/utils/get_first_non_empty.cpp b/louloulibs/utils/get_first_non_empty.cpp new file mode 100644 index 0000000..5b3bedb --- /dev/null +++ b/louloulibs/utils/get_first_non_empty.cpp @@ -0,0 +1,11 @@ +#include <utils/get_first_non_empty.hpp> + +bool is_empty(const std::string& val) +{ + return val.empty(); +} + +bool is_empty(const int& val) +{ + return val == 0; +} diff --git a/louloulibs/utils/get_first_non_empty.hpp b/louloulibs/utils/get_first_non_empty.hpp new file mode 100644 index 0000000..a38f5fb --- /dev/null +++ b/louloulibs/utils/get_first_non_empty.hpp @@ -0,0 +1,20 @@ +#pragma once + +#include <string> + +bool is_empty(const std::string& val); +bool is_empty(const int& val); + +template <typename T> +T get_first_non_empty(T&& last) +{ + return last; +} + +template <typename T, typename... Args> +T get_first_non_empty(T&& first, Args&&... args) +{ + if (!is_empty(first)) + return first; + return get_first_non_empty(std::forward<Args>(args)...); +} |