utest: move cpp from examples to components/libc/cplusplus

Also update the case names to compatible with naming rules.

Signed-off-by: Chen Wang <[email protected]>

1 files changed, 0 insertions, 271 deletions

diff --git a/examples/utest/testcases/cpp11/tc_atomic.cpp b/examples/utest/testcases/cpp11/tc_atomic.cpp
deleted file mode 100644
index 4f9ca4b4d8..0000000000
--- a/examples/utest/testcases/cpp11/tc_atomic.cpp
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- * Copyright (c) 2006-2025, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2025-09-19     Rbb666       the first version
- */
-
-#include <rtthread.h>
-#include "utest.h"
-#include <thread>
-#include <atomic>
-#include <cstdint>
-
-/**
- * @brief Test load and store operations for int32_t atomic variables in multi-threaded environment.
- *        Verifies atomicity by performing increment and decrement operations concurrently.
- */
-static void test_atomic_load_store_int32(void)
-{
-    constexpr int        kRound = 10000000;
-    std::atomic<int32_t> thread_count(0);
-    std::atomic<int32_t> count(100);
-    uassert_int_equal(count.load(), 100);
-
-    auto func1 = [&]() mutable {
-        for (int i = 0; i < kRound; ++i)
-        {
-            ++count;
-        }
-        ++thread_count;
-    };
-
-    auto func2 = [&]() mutable {
-        for (int i = 0; i < kRound; ++i)
-        {
-            --count;
-        }
-        ++thread_count;
-    };
-
-    std::thread t1(func1);
-    std::thread t2(func2);
-    t1.join();
-    t2.join();
-
-    uassert_int_equal(count.load(), 100);
-    uassert_int_equal(thread_count.load(), 2);
-}
-
-/**
- * @brief Test load and store operations for int64_t atomic variables in multi-threaded environment.
- *        Verifies atomicity by performing increment and decrement operations concurrently.
- */
-static void test_atomic_load_store_int64(void)
-{
-    constexpr int        kRound = 10000000;
-    std::atomic<int64_t> thread_count(0);
-    std::atomic<int64_t> count(100);
-    uassert_int_equal(count.load(), 100);
-
-    auto func1 = [&]() mutable {
-        for (int i = 0; i < kRound; ++i)
-        {
-            ++count;
-        }
-        ++thread_count;
-    };
-
-    auto func2 = [&]() mutable {
-        for (int i = 0; i < kRound; ++i)
-        {
-            --count;
-        }
-        ++thread_count;
-    };
-
-    std::thread t1(func1);
-    std::thread t2(func2);
-    t1.join();
-    t2.join();
-
-    uassert_int_equal(count.load(), 100);
-    uassert_int_equal(thread_count.load(), 2);
-}
-
-/**
- * @brief Test basic atomic operations for int32_t, including load, store, fetch_add, fetch_sub,
- *        fetch_and, fetch_or, fetch_xor, exchange, and compare_exchange_strong.
- */
-static void test_atomic_basic_int32(void)
-{
-    std::atomic<int32_t> val;
-    val = 10;
-    uassert_int_equal(val.load(), 10);
-
-    val++;
-    uassert_int_equal(val.load(), 11);
-
-    val--;
-    uassert_int_equal(val.load(), 10);
-
-    auto a = val.load();
-    val.store(a);
-    val.fetch_add(1);
-    uassert_int_equal(val.load(), 11);
-    val.fetch_sub(1);
-    uassert_int_equal(val.load(), 10);
-
-    val.fetch_and(14);
-    uassert_int_equal(val.load(), 10);
-
-    val.fetch_or(11); //1010
-    uassert_int_equal(val.load(), 11);
-
-    val.fetch_xor(4);
-    uassert_int_equal(val.load(), 15);
-
-    val.exchange(1);
-    uassert_int_equal(val.load(), 1);
-
-    int32_t x         = 2;
-    int32_t y         = 3;
-    bool    exchanged = val.compare_exchange_strong(x, y);
-    uassert_false(exchanged);
-    uassert_int_equal(val.load(), 1);
-    uassert_int_equal(x, 1);
-    exchanged = val.compare_exchange_strong(x, y);
-    uassert_true(exchanged);
-    uassert_int_equal(val.load(), 3);
-    uassert_int_equal(x, 1);
-}
-
-/**
- * @brief Test basic atomic operations for int64_t, including load, store, fetch_add, fetch_sub,
- *        fetch_and, fetch_or, fetch_xor, exchange, and compare_exchange_strong.
- */
-static void test_atomic_basic_int64(void)
-{
-    std::atomic<int64_t> val;
-    val = 10;
-    uassert_int_equal(val.load(), 10);
-
-    val++;
-    uassert_int_equal(val.load(), 11);
-
-    val--;
-    uassert_int_equal(val.load(), 10);
-
-    auto a = val.load();
-    val.store(a);
-    val.fetch_add(1);
-    uassert_int_equal(val.load(), 11);
-    val.fetch_sub(1);
-    uassert_int_equal(val.load(), 10);
-
-    val.fetch_and(14);
-    uassert_int_equal(val.load(), 10);
-
-    val.fetch_or(11); //1010
-    uassert_int_equal(val.load(), 11);
-
-    val.fetch_xor(4);
-    uassert_int_equal(val.load(), 15);
-
-    val.exchange(1);
-    uassert_int_equal(val.load(), 1);
-
-    int64_t x         = 2;
-    int64_t y         = 3;
-    bool    exchanged = val.compare_exchange_strong(x, y);
-    uassert_false(exchanged);
-    uassert_int_equal(val.load(), 1);
-    uassert_int_equal(x, 1);
-    exchanged = val.compare_exchange_strong(x, y);
-    uassert_true(exchanged);
-    uassert_int_equal(val.load(), 3);
-    uassert_int_equal(x, 1);
-}
-
-/**
- * @brief Test atomic operations for bool type, including store, load, exchange, and compare_exchange_strong.
- */
-static void test_atomic_bool(void)
-{
-    std::atomic<bool> flag(false);
-    flag.store(true);
-    uassert_true(flag.load());
-    flag.exchange(false);
-    uassert_false(flag.load());
-    bool expected = false;
-    bool desired  = true;
-    uassert_true(flag.compare_exchange_strong(expected, desired));
-    uassert_true(flag.load());
-}
-
-/**
- * @brief Test atomic operations for pointer type (int*), including store, load, and exchange.
- */
-static void test_atomic_pointer(void)
-{
-    int                a = 1, b = 2;
-    std::atomic<int *> ptr(&a);
-    ptr.store(&b);
-    uassert_int_equal(*ptr.load(), 2);
-    int *old = ptr.exchange(&a);
-    uassert_ptr_equal(old, &b);
-    uassert_int_equal(*ptr.load(), 1);
-}
-
-/**
- * @brief Test memory ordering constraints using memory_order_release and memory_order_acquire.
- */
-static void test_memory_order(void)
-{
-    std::atomic<int> x(0);
-    std::atomic<int> y(0);
-    // Simple test for memory order
-    x.store(1, std::memory_order_release);
-    y.store(2, std::memory_order_release);
-    uassert_int_equal(x.load(std::memory_order_acquire), 1);
-    uassert_int_equal(y.load(std::memory_order_acquire), 2);
-}
-
-/**
- * @brief Test compare_exchange_weak operation, which may fail spuriously and requires looping.
- */
-static void test_compare_exchange_weak(void)
-{
-    std::atomic<int> val(1);
-    int              expected = 1;
-    int              desired  = 2;
-    while (!val.compare_exchange_weak(expected, desired))
-    {
-        expected = 1; // reset
-    }
-    uassert_int_equal(val.load(), 2);
-}
-
-static rt_err_t utest_tc_init(void)
-{
-    return RT_EOK;
-}
-
-static rt_err_t utest_tc_cleanup(void)
-{
-    return RT_EOK;
-}
-
-static void testcase(void)
-{
-    /* Test load and store operations for int32_t atomic variables in multi-threaded environment */
-    UTEST_UNIT_RUN(test_atomic_load_store_int32);
-    /* Test load and store operations for int64_t atomic variables in multi-threaded environment */
-    UTEST_UNIT_RUN(test_atomic_load_store_int64);
-    /* Test basic atomic operations for int32_t */
-    UTEST_UNIT_RUN(test_atomic_basic_int32);
-    /* Test basic atomic operations for int64_t */
-    UTEST_UNIT_RUN(test_atomic_basic_int64);
-    /* Test atomic operations for bool type */
-    UTEST_UNIT_RUN(test_atomic_bool);
-    /* Test atomic operations for pointer type */
-    UTEST_UNIT_RUN(test_atomic_pointer);
-    /* Test memory ordering constraints */
-    UTEST_UNIT_RUN(test_memory_order);
-    /* Test compare_exchange_weak operation */
-    UTEST_UNIT_RUN(test_compare_exchange_weak);
-}
-UTEST_TC_EXPORT(testcase, "testcases.cpp11.atomic_tc", utest_tc_init, utest_tc_cleanup, 10);