ProgramGamer miss-programgamer
miss-programgamer
/ dictionary.cpp
Created
December 20, 2025 01:18
An implementation of a dictionary type in C++ as an alias of std::unordered_map which uses a custom hash functor. This hash uses a trait type to tag specific combinations of types as transparent so that map lookups can happen using heterogenous types (like std::string and std::string_view, for instance).
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| #include <string> | |
| #include <string_view> | |
| #include <unordered_map> | |
| template<typename T, typename = void> | |
| struct KeyTraits {}; | |
| template<> | |
| struct KeyTraits<std::string, std::string_view> | |
| { |
miss-programgamer
/ replaceYall.js
Created
February 28, 2025 04:17
Perform a search-and-replace operation on a string based on the key/value pairs of an object.
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| /** | |
| * Search-and-replaces the given text based on the key/value pairs of an object. | |
| * @param {string} text - Text to search and replace. | |
| * @param {object} object - Replacee/replacement key/value pairs. | |
| * @returns {string} Text after having pieces replaced. | |
| */ | |
| function replaceYall(text, object) { | |
| return Object.keys(object).reduce((text, key) => { | |
| return text.replaceAll(key, object[key]); | |
| }, text); |
miss-programgamer
/ main.cpp
Last active
November 17, 2020 08:29
volatile qualifier ignores virtual pointer section of class instance
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| /* | |
| Author: Miss Programgamer | |
| This is an example program that illustrates that some compilers (such as vc++ and g++) | |
| ommit volatility for the vptr part of classes. While I do not know the exact wording | |
| of the standard, I know that the intent of the "volatile" qualifier is to make the | |
| compiler ommit various caching optimisations and read a value each time it is needed, | |
| as the qualifier indicates that memory may be changed unpredictably. However, this | |
| principle is not honored for virtual table pointers, at least for the compilers | |
| listed above. |