feat: 初步实现学习系统

Signed-off-by: YdrMaster <[email protected]>

.gitignore

@@ -1,3 +1,3 @@
 /build
-/.*/
+.*/
 !/.github/

README.md

@@ -2,7 +2,5 @@
 
 ## Commands
 
-- configure: `xmake f -v`
-- build: `xmake build`
-- run: `xmake run <exerciseXX>`
-- clean: `xmake clean -a`
+- build: `xmake`
+- run: `xmake run learn <exercise number>`

exercises/02_function/main.cpp

@@ -1,15 +1,19 @@
+#include <cassert>
 #include <iostream>
 
 // NOTE: 这是函数声明
 int add(int, int);
 
 int main(int argc, char **argv) {
+    assert(add(123, 456) == 123 + 456);
+
     auto x = 1, y = 2;
     std::cout << x << " + " << y << " = " << add(x, y) << std::endl;
     return 0;
 }
 
 // TODO: 补全函数定义
-int add(int a, int b) {
+// THINK: `static` 修饰函数有什么效果？
+static int add(int a, int b) {
     return a + b;
 }

exercises/03_argument&parameter/main.cpp

@@ -1,8 +1,8 @@
-// See <https://stackoverflow.com/questions/156767/whats-the-difference-between-an-argument-and-a-parameter>.
+// READ: <https://stackoverflow.com/questions/156767/whats-the-difference-between-an-argument-and-a-parameter>
 
 #include <iostream>
 
-void func(int param) {
+static void func(int param) {
     std::cout << "befor add: " << param << std::endl;
     param += 1;
     std::cout << "after add: " << param << std::endl;

exercises/10_class_drop/main.cpp

@@ -20,8 +20,7 @@ class BoxedFibonacci {
 };
 
 int main(int argc, char **argv) {
-    BoxedFibonacci fib0, fib1;
-    std::cout << "fibonacci(10) = " << fib0[10] << std::endl;
-    std::cout << "fibonacci(100) = " << fib1[100] << std::endl;
+    BoxedFibonacci fib;
+    std::cout << "fibonacci(10) = " << fib[10] << std::endl;
     return 0;
 }

exercises/11_class_copy/main.cpp → exercises/11_class_clone/main.cpp

@@ -9,6 +9,7 @@ class BoxedFibonacci {
         : cache(new size_t[128]{0, 1}), next(2) {}
     BoxedFibonacci(BoxedFibonacci const &other)
         : cache(new size_t[128]), next(other.next) {
+        std::cout << "Clone Fibonacci with next = " << next << std::endl;
         std::memcpy(cache, other.cache, sizeof(size_t) * next);
     }
     ~BoxedFibonacci() {

exercises/12_class_move/main.cpp

@@ -1,3 +1,4 @@
+#include <cassert>
 #include <iostream>
 
 class BoxedFibonacci {
@@ -9,7 +10,9 @@ class BoxedFibonacci {
         : cache(new size_t[128]{0, 1}), next(2) {}
     BoxedFibonacci(BoxedFibonacci &&other) noexcept
         : cache(std::exchange(other.cache, nullptr)),
-          next(std::exchange(other.next, 0)) {}
+          next(std::exchange(other.next, 0)) {
+        std::cout << "Move Fibonacci with next = " << next << std::endl;
+    }
     ~BoxedFibonacci() {
         std::cout << "Drop Fibonacci with next = " << next << std::endl;
         delete[] cache;
@@ -21,11 +24,20 @@ class BoxedFibonacci {
         }
         return cache[i];
     }
+
+    bool is_available() const {
+        return cache;
+    }
 };
 
 int main(int argc, char **argv) {
-    BoxedFibonacci fib0, fib1;
-    std::cout << "fibonacci(10) = " << fib0[10] << std::endl;
-    std::cout << "fibonacci(100) = " << fib1[100] << std::endl;
+    BoxedFibonacci fib;
+    std::cout << "fibonacci(10) = " << fib[10] << std::endl;
+
+    auto fib_ = std::move(fib);
+    assert(!fib.is_available());
+    assert(fib_.is_available());
+    std::cout << "fibonacci(12) = " << fib_[12] << std::endl;
+
     return 0;
 }

exercises/xmake.lua

@@ -0,0 +1,94 @@
+add_rules("mode.debug", "mode.release")
+set_encodings("utf-8")
+
+target("exercise00")
+    set_kind("binary")
+    add_files("00_hello_world/main.cpp")
+
+target("exercise01")
+    set_kind("binary")
+    add_files("01_variable&add/main.cpp")
+
+target("exercise02")
+    set_kind("binary")
+    add_files("02_function/main.cpp")
+
+target("exercise03")
+    set_kind("binary")
+    add_files("03_argument&parameter/main.cpp")
+
+target("exercise04")
+    set_kind("binary")
+    add_files("04_static/main.cpp")
+
+target("exercise05")
+    set_kind("binary")
+    add_files("05_constexpr/main.cpp")
+
+target("exercise06")
+    set_kind("binary")
+    add_files("06_loop/main.cpp")
+
+target("exercise07")
+    set_kind("binary")
+    add_files("07_struct/main.cpp")
+
+target("exercise08")
+    set_kind("binary")
+    add_files("08_class/main.cpp")
+
+target("exercise09")
+    set_kind("binary")
+    add_files("09_class_method_const/main.cpp")
+
+target("exercise10")
+    set_kind("binary")
+    add_files("10_class_drop/main.cpp")
+
+target("exercise11")
+    set_kind("binary")
+    add_files("11_class_clone/main.cpp")
+
+target("exercise12")
+    set_kind("binary")
+    add_files("12_class_move/main.cpp")
+
+target("exercise13")
+    set_kind("binary")
+    add_files("13_std_array/main.cpp")
+
+target("exercise14")
+    set_kind("binary")
+    add_files("14_std_vector/main.cpp")
+
+target("exercise15")
+    set_kind("binary")
+    add_files("15_std_deque/main.cpp")
+
+target("exercise16")
+    set_kind("binary")
+    add_files("16_std_map/main.cpp")
+
+target("exercise17")
+    set_kind("binary")
+    add_files("17_std_accumulate/main.cpp")
+
+target("exercise18")
+    set_kind("binary")
+    add_files("18_std_transform/main.cpp")
+
+target("exercise19")
+    set_kind("binary")
+    add_files("19_std_fs/main.cpp")
+
+target("exercise20")
+    set_kind("binary")
+    add_files("20_std_thread/main.cpp")
+
+target("exercise21")
+    set_kind("binary")
+    add_files("21_std_mutex/main.cpp")
+
+target("exercise22")
+    set_kind("binary")
+    add_files("22_template/main.cpp")

learn/main.cpp

@@ -0,0 +1,55 @@
+#include <cstdlib>
+#include <filesystem>
+#include <iostream>
+#include <string>
+
+#ifndef __XMAKE__
+#define __XMAKE__ "XMAKE is not defined"
+#endif
+
+namespace fs = std::filesystem;
+constexpr static auto XMAKE = __XMAKE__;
+
+int process_run(const char *cmd, const char *proj) {
+    static auto exercises = fs::absolute(fs::path(XMAKE) / "exercises");
+    auto prefix = std::string("xmake ") + cmd + " -P " + exercises.string() + ' ' + proj;
+    return std::system(prefix.c_str());
+}
+
+bool test_exercise(int n) {
+    char str[] = "exerciseXX";
+    std::sprintf(str, "exercise%02d", n);
+    return process_run("", str) == 0 && process_run("run", str) == 0;
+}
+
+int main(int argc, char **argv) {
+    switch (argc) {
+        case 2: {
+            int num;
+            if (1 != std::sscanf(argv[1], "%d", &num)) {
+                std::cerr << "Invalid exercise number: " << argv[1] << std::endl;
+                return 1;
+            };
+            if (!test_exercise(num)) {
+                return 1;
+            }
+            break;
+        }
+        case 1: {
+            constexpr auto MAX_EXERCISE = 22;
+            auto success = 0;
+            for (auto i = 0; i <= MAX_EXERCISE; ++i) {
+                if (test_exercise(i)) {
+                    ++success;
+                }
+            }
+            std::cout << success << "/" << MAX_EXERCISE + 1 << std::endl;
+            break;
+        }
+        default:
+            std::cerr << "Usage: xmake run learn <exercice number>" << std::endl;
+            return 1;
+    }
+
+    return 0;
+}

xmake.lua

@@ -1,94 +1,10 @@
 add_rules("mode.debug", "mode.release")
 set_encodings("utf-8")
 
-target("exercise00")
+target("learn")
     set_kind("binary")
-    add_files("exercises/00_hello_world/main.cpp")
 
-target("exercise01")
-    set_kind("binary")
-    add_files("exercises/01_variable&add/main.cpp")
-
-target("exercise02")
-    set_kind("binary")
-    add_files("exercises/02_function/main.cpp")
-
-target("exercise03")
-    set_kind("binary")
-    add_files("exercises/03_argument&parameter/main.cpp")
-
-target("exercise04")
-    set_kind("binary")
-    add_files("exercises/04_static/main.cpp")
-
-target("exercise05")
-    set_kind("binary")
-    add_files("exercises/05_constexpr/main.cpp")
-
-target("exercise06")
-    set_kind("binary")
-    add_files("exercises/06_loop/main.cpp")
-
-target("exercise07")
-    set_kind("binary")
-    add_files("exercises/07_struct/main.cpp")
-
-target("exercise08")
-    set_kind("binary")
-    add_files("exercises/08_class/main.cpp")
-
-target("exercise09")
-    set_kind("binary")
-    add_files("exercises/09_class_method_const/main.cpp")
-
-target("exercise10")
-    set_kind("binary")
-    add_files("exercises/10_class_drop/main.cpp")
-
-target("exercise11")
-    set_kind("binary")
-    add_files("exercises/11_class_copy/main.cpp")
+    add_defines(string.format("__XMAKE__=\"%s\"", os.scriptdir():gsub("\\", "/")))
 
-target("exercise12")
-    set_kind("binary")
-    add_files("exercises/12_class_move/main.cpp")
-
-target("exercise13")
-    set_kind("binary")
-    add_files("exercises/13_std_move/main.cpp")
-
-target("exercise14")
-    set_kind("binary")
-    add_files("exercises/14_std_vector/main.cpp")
-
-target("exercise15")
-    set_kind("binary")
-    add_files("exercises/15_std_deque/main.cpp")
-
-target("exercise16")
-    set_kind("binary")
-    add_files("exercises/16_std_map/main.cpp")
-
-target("exercise17")
-    set_kind("binary")
-    add_files("exercises/17_std_accumulate/main.cpp")
-
-target("exercise18")
-    set_kind("binary")
-    add_files("exercises/18_std_transform/main.cpp")
-
-target("exercise19")
-    set_kind("binary")
-    add_files("exercises/19_std_fs/main.cpp")
-
-target("exercise20")
-    set_kind("binary")
-    add_files("exercises/20_std_thread/main.cpp")
-
-target("exercise21")
-    set_kind("binary")
-    add_files("exercises/21_std_mutex/main.cpp")
-
-target("exercise22")
-    set_kind("binary")
-    add_files("exercises/22_template/main.cpp")
+    set_languages("cxx17")
+    add_files("learn/main.cpp")