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author | Petr Mrázek <peterix@gmail.com> | 2016-04-10 15:53:05 +0200 |
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committer | Petr Mrázek <peterix@gmail.com> | 2016-05-01 00:00:14 +0200 |
commit | b6d455a02bd338e9dc0faa09d4d8177ecd8d569a (patch) | |
tree | 41982bca1ede50049f2f8c7109dd18edeefde6d0 /api/logic/DefaultVariable.h | |
parent | 47e37635f50c09b4f9a9ee7699e3120bab3e4088 (diff) | |
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NOISSUE reorganize and document libraries
Diffstat (limited to 'api/logic/DefaultVariable.h')
-rw-r--r-- | api/logic/DefaultVariable.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/api/logic/DefaultVariable.h b/api/logic/DefaultVariable.h new file mode 100644 index 00000000..38d7ecc2 --- /dev/null +++ b/api/logic/DefaultVariable.h @@ -0,0 +1,35 @@ +#pragma once + +template <typename T> +class DefaultVariable +{ +public: + DefaultVariable(const T & value) + { + defaultValue = value; + } + DefaultVariable<T> & operator =(const T & value) + { + currentValue = value; + is_default = currentValue == defaultValue; + is_explicit = true; + return *this; + } + operator const T &() const + { + return is_default ? defaultValue : currentValue; + } + bool isDefault() const + { + return is_default; + } + bool isExplicit() const + { + return is_explicit; + } +private: + T currentValue; + T defaultValue; + bool is_default = true; + bool is_explicit = false; +}; |