Paze AI
251ee470bf
- 所有 tcc 文件/内容/宏改名为 pcc (tcc.c->pcc.c, tccelf.c->pccelf.c, libtcc.c->libpcc.c 等) - 支持架构: i386, x86_64, ARM, ARM64, RISC-V, C67 - 支持格式: PE, ELF, Mach-O, COFF - 完整预处理、代码生成、链接器、调试信息 - 构建成功: pcc.exe (x86_64 Windows) - 功能测试通过: 递归/结构体/浮点/switch/循环 - 自编译测试通过: pcc 可以编译自身
79 行
2.3 KiB
C
79 行
2.3 KiB
C
#include <stdatomic.h>
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#include <stdbool.h>
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#include <stdio.h>
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// standard assert would popup a dialog box on windows
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#define assert(x) \
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printf("assert \"%s\" : %s\n", #x, (x) ? "yes" : "no");
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int main() {
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// Test 1: Basic functionality of __atomic_store_n and __atomic_load_n
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{
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int atomic_var = 0;
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__atomic_store_n(&atomic_var, 42, __ATOMIC_SEQ_CST);
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int loaded = __atomic_load_n(&atomic_var, __ATOMIC_SEQ_CST);
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assert(loaded == 42);
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}
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// Test 2: Successful exchange with __atomic_compare_exchange_n
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{
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int atomic_var = 100;
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int expected = 100;
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bool success = __atomic_compare_exchange_n(
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&atomic_var, &expected, 200,
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false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST
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);
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assert(success);
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assert(atomic_var == 200);
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assert(expected == 100); // expected remains unchanged on success
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}
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// Test 3: Failed exchange with __atomic_compare_exchange_n (update expected)
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{
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int atomic_var = 100;
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int expected = 99;
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bool success = __atomic_compare_exchange_n(
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&atomic_var, &expected, 200,
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false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST
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);
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assert(!success);
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assert(atomic_var == 100);
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assert(expected == 100); // expected updated to current value on failure
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}
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// Test 4: Weak version (spurious failure handling)
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{
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int atomic_var = 50;
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int expected = 50;
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for (int i = 0; i < 10; i++) {
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if (__atomic_compare_exchange_n(
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&atomic_var, &expected, 60,
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true, __ATOMIC_RELAXED, __ATOMIC_RELAXED
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)) {
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break;
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}
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}
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assert(atomic_var == 60);
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}
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// Test 5: Pointer type operations
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{
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int value = 100;
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int* atomic_ptr = &value;
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int* new_ptr = NULL;
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__atomic_store_n(&atomic_ptr, new_ptr, __ATOMIC_RELEASE);
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int* loaded_ptr = __atomic_load_n(&atomic_ptr, __ATOMIC_ACQUIRE);
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assert(loaded_ptr == NULL);
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}
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// Test 6: Relaxed memory ordering
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{
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int atomic_var = 0;
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__atomic_store_n(&atomic_var, 10, __ATOMIC_RELAXED);
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assert(__atomic_load_n(&atomic_var, __ATOMIC_RELAXED) == 10);
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}
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printf("All atomic tests passed!\n");
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return 0;
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}
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