96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
#include <hex/api/content_registry.hpp>
|
|
#include <hex/api/localization_manager.hpp>
|
|
|
|
#include <hex/helpers/http_requests.hpp>
|
|
#include <hex/ui/view.hpp>
|
|
|
|
#include <content/tools_entries.hpp>
|
|
|
|
#include <regex>
|
|
|
|
#include <imgui.h>
|
|
#include <hex/ui/imgui_imhex_extensions.h>
|
|
|
|
#include <nlohmann/json.hpp>
|
|
|
|
|
|
namespace hex::plugin::builtin {
|
|
namespace impl {
|
|
void drawEuclidianAlgorithm() {
|
|
static u64 a, b;
|
|
|
|
static i64 gcdResult = 0;
|
|
static i64 lcmResult = 0;
|
|
static i64 p = 0, q = 0;
|
|
static bool overflow = false;
|
|
|
|
constexpr static auto extendedGcd = []<typename T>(T a, T b) -> std::pair<T, T> {
|
|
T x = 1, y = 0;
|
|
|
|
T xLast = 0, yLast = 1;
|
|
|
|
while (b > 0) {
|
|
T quotient = a / b;
|
|
|
|
std::tie(x, xLast) = std::tuple { xLast, x - quotient * xLast };
|
|
std::tie(y, yLast) = std::tuple { yLast, y - quotient * yLast };
|
|
std::tie(a, b) = std::tuple { b, a - quotient * b };
|
|
}
|
|
|
|
return { x, y };
|
|
};
|
|
|
|
ImGuiExt::TextFormattedWrapped("{}", "hex.builtin.tools.euclidean_algorithm.description"_lang);
|
|
|
|
ImGui::NewLine();
|
|
|
|
if (ImGuiExt::BeginBox()) {
|
|
bool hasChanged = false;
|
|
hasChanged = ImGui::InputScalar("A", ImGuiDataType_U64, &a) || hasChanged;
|
|
hasChanged = ImGui::InputScalar("B", ImGuiDataType_U64, &b) || hasChanged;
|
|
|
|
// Update results when input changed
|
|
if (hasChanged) {
|
|
|
|
// Detect overflow
|
|
const u64 multiplicationResult = a * b;
|
|
if (a != 0 && multiplicationResult / a != b) {
|
|
gcdResult = 0;
|
|
lcmResult = 0;
|
|
p = 0;
|
|
q = 0;
|
|
|
|
overflow = true;
|
|
} else {
|
|
gcdResult = std::gcd<i128, i128>(a, b);
|
|
lcmResult = std::lcm<i128, i128>(a, b);
|
|
std::tie(p, q) = extendedGcd(a, b);
|
|
|
|
overflow = false;
|
|
}
|
|
}
|
|
|
|
ImGui::Separator();
|
|
|
|
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().DisabledAlpha);
|
|
ImGui::InputScalar("gcd(A, B)", ImGuiDataType_S64, &gcdResult, nullptr, nullptr, "%llu", ImGuiInputTextFlags_ReadOnly);
|
|
|
|
ImGui::Indent();
|
|
ImGuiExt::TextFormatted(ICON_VS_ARROW_RIGHT " a \u00D7 p + b \u00D7 q = ({0}) \u00D7 ({1}) + ({2}) \u00D7 ({3})", a, p, b, q);
|
|
ImGui::Unindent();
|
|
|
|
ImGui::InputScalar("lcm(A, B)", ImGuiDataType_S64, &lcmResult, nullptr, nullptr, "%llu", ImGuiInputTextFlags_ReadOnly);
|
|
ImGui::PopStyleVar();
|
|
|
|
ImGuiExt::EndBox();
|
|
}
|
|
|
|
if (overflow)
|
|
ImGuiExt::TextFormattedColored(ImGuiExt::GetCustomColorVec4(ImGuiCustomCol_ToolbarRed), "{}", "hex.builtin.tools.euclidean_algorithm.overflow"_lang);
|
|
else
|
|
ImGui::NewLine();
|
|
|
|
}
|
|
}
|
|
}
|