c#define SUCCESS 0#define ERROR_NOMEM -1#define ERROR_INVALID_ARG -2int someFunction(int arg)
{if (arg < 0) {return ERROR_INVALID_ARG;}// ... 函數(shù)邏輯return SUCCESS;}

ctypedef struct
{int errorCode;const char* errorMessage;} ErrorInfo;
thread_local ErrorInfo currentError = {0, NULL};void setError(int code, const char* msg)
{currentError.errorCode = code;currentError.errorMessage = msg;}
int someFunction() {if (/* 某種錯(cuò)誤條件 */)
{setError(ERROR_NOMEM, "Memory allocation failed");
return ERROR_NOMEM;}// ... 函數(shù)邏輯return SUCCESS;}

cvoid someFunction() {int* ptr = malloc(100 * sizeof(int));if (!ptr) {setError(ERROR_NOMEM, "Memory allocation failed");return ERROR_NOMEM;}// 函數(shù)邏輯if (/* 檢測(cè)到錯(cuò)誤 */) {free(ptr); // 清理資源setError(ERROR_SOME_OTHER_ERROR, "Some other error occurred");return ERROR_SOME_OTHER_ERROR;}// 正常結(jié)束，釋放資源free(ptr);return SUCCESS;}

cvoid someFunction()
{int* ptr = malloc(100 * sizeof(int));
if (!ptr)
{setError(ERROR_NOMEM, "Memory allocation failed");
return ERROR_NOMEM;}// 函數(shù)邏輯if (/* 檢測(cè)到錯(cuò)誤 */)
{goto cleanup;}// 正常結(jié)束
return SUCCESS;cleanup:free(ptr); // 清理資源
setError(ERROR_SOME_OTHER_ERROR, "Some other error occurred");
return ERROR_SOME_OTHER_ERROR;}

cint readFile(const char* filename, char** content, size_t* length) {// 打開(kāi)文件，讀取內(nèi)容，分配內(nèi)存給*content，設(shè)置*lengthif (/* 錯(cuò)誤 */) {setError(ERROR_FILE_NOT_FOUND, "File not found");return ERROR_FILE_NOT_FOUND;}// ...return SUCCESS;}

cvoid logError(const char* msg)
{// 將錯(cuò)誤信息記錄到日志文件或標(biāo)準(zhǔn)錯(cuò)誤輸出fprintf(stderr, "Error: %s\n", msg);}
void someFunction()
{if (/* 錯(cuò)誤條件 */)
{setError(ERROR_NOMEM, "Memory allocation failed");
logError(currentError.errorMessage);
return ERROR_NOMEM;}// ...}