intarr[5];// Check if index is within boundsif(index >=0&& index <5){// Access element at indexint value =arr[index];}else{// Handle out-of-bounds error}
2. List Size Checking
vector<int> vec;// Check if list is emptyif(vec.empty()){// Handle empty list}// Check if list contains a specific elementif(find(vec.begin(),vec.end(), element)!=vec.end()){// Element found}else{// Element not found}
int age = 15;
// Check if age is within a valid range
if (age < 0 || age > 120) {
// Handle invalid age
} else {
// Age is valid
}
ifstream file("filename.txt");
// Check if file is open
if (file.is_open()) {
// Get file size
file.seekg(0, ios::end);
streampos size = file.tellg();
// Check if file is empty
if (size == 0) {
// Handle empty file
}
// Check if file is too large
if (size > MAX_FILE_SIZE) {
// Handle file too large
}
} else {
// Handle file open error
}
int* ptr = new int[10];
// Check if allocation succeeded
if (ptr == nullptr) {
// Handle memory allocation failure
}
// Check if allocation is within bounds
if (ptr < SOME_LOWER_BOUND || ptr > SOME_UPPER_BOUND) {
// Handle out-of-bounds allocation
}
string str = "Hello World";
// Check if string is empty
if (str.empty()) {
// Handle empty string
}
// Check if string is within a valid length range
if (str.length() < MIN_LENGTH || str.length() > MAX_LENGTH) {
// Handle invalid string length
}
int num;
// Get user input
cin >> num;
// Validate input
if (cin.fail()) {
// Handle invalid input
} else if (num < 0 || num > 100) {
// Handle out-of-range input
}
chrono::high_resolution_clock::time_point start = chrono::high_resolution_clock::now();
// Perform some computation
chrono::high_resolution_clock::time_point end = chrono::high_resolution_clock::now();
// Check if computation took too long
if (chrono::duration_cast<chrono::milliseconds>(end - start).count() > TIME_LIMIT) {
// Handle time limit exceeded
}
for (int i = 0; i < 100; i++) {
// Perform some action
// Check if loop has iterated too many times
if (i >= MAX_ITERATIONS) {
break;
}
}
int recursionDepth = 0;
void recursiveFunction(int n) {
recursionDepth++;
// Check if recursion depth limit has been reached
if (recursionDepth >= MAX_RECURSION_DEPTH) {
// Handle stack overflow
}
// Recursive call
if (n > 0) {
recursiveFunction(n - 1);
}
}
int threadCount = 0;
void newThread() {
threadCount++;
// Check if too many threads are running concurrently
if (threadCount > MAX_CONCURRENCY) {
// Handle thread limit exceeded
}
// Thread execution
// ...
}
int queryCount = 0;
void databaseQuery() {
queryCount++;
// Check if too many queries are being executed
if (queryCount > MAX_QUERIES_PER_SECOND) {
// Handle query rate limit exceeded
}
// Query execution
// ...
}
int memoryUsage = 0;
void allocateMemory() {
memoryUsage++;
// Check if memory usage limit has been reached
if (memoryUsage > MAX_MEMORY_USAGE) {
// Handle memory limit exceeded
}
// Memory allocation
// ...
}
int networkTraffic = 0;
void sendData(int size) {
networkTraffic += size;
// Check if network traffic limit has been reached
if (networkTraffic > MAX_NETWORK_TRAFFIC) {
// Handle network traffic limit exceeded
}
// Data transmission
// ...
}
int apiCallCount = 0;
void makeApiCall() {
apiCallCount++;
// Check if API call limit has been reached
if (apiCallCount > MAX_API_CALLS_PER_HOUR) {
// Handle API call limit exceeded
}
// API call
// ...
}
int fileDescriptorCount = 0;
void openFile() {
fileDescriptorCount++;
// Check if file descriptor limit has been reached
if (fileDescriptorCount > MAX_FILE_DESCRIPTORS) {
// Handle file descriptor limit exceeded
}
// File opening
// ...
}
int processCount = 0;
void startProcess() {
processCount++;
// Check if process limit has been reached
if (processCount > MAX_PROCESSES) {
// Handle process limit exceeded
}
// Process creation
// ...
}
char inputBuffer[MAX_BUFFER_SIZE];
// Get user input
cin.getline(inputBuffer, MAX_BUFFER_SIZE);
// Check if the input buffer is full
if (!cin.good()) {
// Handle input buffer limit exceeded
}
string outputBuffer;
// Write to the output buffer
outputBuffer.append("Some data");
// Check if the output buffer is full
if (outputBuffer.size() >= MAX_BUFFER_SIZE) {
// Handle output buffer limit exceeded
}
int argc;
char** argv;
// Parse command line arguments
argc = _argc;
argv = _argv;
// Check if the number of arguments exceeds the limit
if (argc > MAX_ARGUMENTS) {
// Handle argument limit exceeded
}
int environmentVariableCount = 0;
// Enumerate environment variables
LPTSTR envVars;
envVars = GetEnvironmentStrings();
while (*envVars) {
environmentVariableCount++;
// Parse and process the environment variable
envVars += strlen(envVars) + 1;
}
// Check if the number of environment variables exceeds the limit
if (environmentVariableCount > MAX_ENVIRONMENT_VARIABLES) {
// Handle environment variable limit exceeded
}
int registryKeyCount = 0;
// Enumerate registry keys
HKEY hKey;
RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\MyCompany", 0, KEY_READ, &hKey);
if (hKey != INVALID_HANDLE_VALUE) {
DWORD subKeyIndex = 0;
char subKeyName[MAX_SUBKEY_NAME_LENGTH];
DWORD subKeySize = MAX_SUBKEY_NAME_LENGTH;
while (RegEnumKeyEx(hKey, subKeyIndex, subKeyName, &subKeySize, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) {
registryKeyCount++;
// Parse and process the registry key
subKeySize = MAX_SUBKEY_NAME_LENGTH;
subKeyIndex++;
}
RegCloseKey(hKey);
}
// Check if the number of registry keys exceeds the limit
if (registryKeyCount > MAX_REGISTRY_KEYS) {
// Handle registry key limit exceeded
}
int serviceCount = 0;
// Enumerate services
SC_HANDLE hManager;
hManager = OpenSCManager(NULL, NULL, SC_MANAGER_ENUMERATE_SERVICE);
if (hManager) {
ENUM_SERVICE_STATUS_PROCESS* services;
DWORD servicesSize = 0;
DWORD servicesReturned = 0;
EnumServicesStatusEx(hManager, SC_ENUM_PROCESS_INFO, SERVICE_WIN32, SERVICE_STATE_ALL,
(LPBYTE)services, servicesSize, &servicesSize, &servicesReturned, NULL, NULL);
if (GetLastError() == ERROR_MORE_DATA) {
services = (ENUM_SERVICE_STATUS_PROCESS*)malloc(servicesSize);
EnumServicesStatusEx(hManager, SC_ENUM_PROCESS_INFO, SERVICE_WIN32, SERVICE_STATE_ALL,
(LPBYTE)services, servicesSize, &servicesSize, &servicesReturned, NULL, NULL);
}
for (DWORD i = 0; i < servicesReturned; i++) {
serviceCount++;
// Parse and process the service
}
free(services);
CloseServiceHandle(hManager);
}
// Check if the number of services exceeds the limit
if (serviceCount > MAX_SERVICES) {
// Handle service limit exceeded
}
int driverCount = 0;
// Enumerate drivers
PDriverObject driverObject;
for (driverObject = IoGetInitialDriverObject(); driverObject != NULL; driverObject = driverObject->NextDriver) {
driverCount++;
// Parse and process the driver
}
// Check if the number of drivers exceeds the limit
if (driverCount > MAX_DRIVERS) {
// Handle driver limit exceeded
}
int interruptRequestCount = 0;
// Enumerate interrupt requests
for (int i = 0; i < MAXIMUM_PROCESSORS; i++) {
PRKM_DEVICE_NODE pDeviceNode;
for (pDeviceNode = KeGetPcr()->Prcb[i].DeviceListHead.Flink;
pDeviceNode != &KeGetPcr()->Prcb[i].DeviceListHead;
pDeviceNode = pDeviceNode->Next) {
PIRQL_TABLE_ENTRY irqlTableEntry;
for (irqlTableEntry = pDeviceNode->InterruptTable;
irqlTableEntry->IsrRoutine != NULL; irqlTableEntry += sizeof(IRQ_TABLE_ENTRY)) {
interruptRequestCount++;
// Parse and process the interrupt request
}
}
}
// Check if the number of interrupt requests exceeds the limit
if (interruptRequestCount > MAX_INTERRUPT_REQUESTS) {
// Handle interrupt request limit exceeded
}
int processHandleCount = 0;
// Enumerate process handles
HANDLE processHandle;
for (processHandle = INVALID_HANDLE_VALUE;
processHandle != NULL;
processHandle = DuplicateHandle(GetCurrentProcess(), processHandle, NULL, NULL, 0, FALSE, DUPLICATE_SAME_ACCESS)) {
CloseHandle(processHandle);
processHandleCount++;
}
// Check if the number of process handles exceeds the limit
if (processHandleCount > MAX_PROCESS_HANDLES) {
// Handle process handle limit exceeded
}
int heapAllocationCount = 0;
// Enumerate heap allocations
HEAP_ENTRY heapEntry;
heapEntry.wFlags = 0;
heapEntry.iRegionIndex = 0;
while (HeapWalk(GetProcessHeap(), &heapEntry) != FALSE) {
heapAllocationCount++;
// Parse and process the heap allocation
}
// Check if the number of heap allocations exceeds the limit
if (heapAllocationCount > MAX_HEAP_ALLOCATIONS) {
// Handle heap allocation limit exceeded
}
MEMORYSTATUSEX memStatus;
memStatus.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memStatus);
// Check if pagefile usage exceeds the limit
if (memStatus.ullTotalPageFile >> 20 > MAX_PAGEFILE_USAGE) {
// Handle pagefile usage limit exceeded
}
MEMORYSTATUSEX memStatus;
memStatus.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memStatus);
// Check if physical memory usage exceeds the limit
if (memStatus.ullTotalPhys >> 20 > MAX_PHYSICAL_MEMORY_USAGE) {
// Handle physical memory usage limit exceeded
}
MEMORYSTATUSEX memStatus;
memStatus.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memStatus);
// Check if virtual memory usage exceeds the limit
if (memStatus.ullTotalVirtual >> 20 > MAX_VIRTUAL_MEMORY_USAGE) {
// Handle virtual memory usage limit exceeded
}
GET_SYSTEM_TIMES time;
GetSystemTimes(&time);
// Calculate CPU usage
double cpuUsage = (time.dwKernelTime + time.dwUserTime) / (time.dwKernelTime + time.dwUserTime + time.dwIdleTime);
// Check if CPU usage exceeds the limit
if (cpuUsage * 100.0 > MAX_CPU_USAGE) {
// Handle CPU usage limit exceeded
}
ULARGE_INTEGER fsFreeBytes;
ULARGE_INTEGER fsTotalBytes;
GetDiskFreeSpaceEx(NULL, &fsFreeBytes, &fsTotalBytes, NULL);
// Calculate disk usage
double diskUsage = (fsTotalBytes.QuadPart - fsFreeBytes.QuadPart) / fsTotalBytes.QuadPart;
// Check if disk usage exceeds the limit
if (diskUsage * 100.0 > MAX_DISK_USAGE) {
// Handle disk usage limit exceeded
}
NETWORK_INTERFACE_INFO interfaceInfo[MAX_INTERFACES];
DWORD interfaceCount;
GetNetworkInterfaceInfo(interfaceInfo, &interfaceCount);
// Calculate network bandwidth used
double bandwidthUsed = 0.0;
for (DWORD i = 0; i < interfaceCount; i++) {
bandwidthUsed += interfaceInfo[i].Speed;
}
// Check if network bandwidth used exceeds the limit
if (bandwidthUsed > MAX_NETWORK_BANDWIDTH) {
// Handle network bandwidth limit exceeded
}
IClassFactory* pClassFactory = NULL;
CoGetClassObject(CLSID_MyObject, CLSCTX_INPROC_SERVER, NULL, IID_IClassFactory, (LPVOID*)&pClassFactory);
IUnknown* pUnknown = NULL;
pClassFactory->CreateInstance(NULL, IID_IUnknown, (LPVOID*)&pUnknown);
// Use the COM object
// ...
IUnknown_Release(pUnknown);
pClassFactory->Release();
SQLHENV hEnv;
SQLHDBC hDbc;
SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv);
SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc);
SQLSetConnectAttr(hDbc, SQL_ATTR_CONNECTION_LIMIT, (SQLPOINTER)MAX_CONNECTIONS, SQL_IS_UINTEGER);
// Connect to the database
// ...
// Use the database connection
// ...
SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
chrono::high_resolution_clock::time_point lastApiCallTime = chrono::high_resolution_clock::now();
void makeApiCall() {
// Check if API rate limit has been exceeded
chrono::high_resolution_clock::time_point now = chrono::high_resolution_clock::now();
chrono::milliseconds elapsed =
chrono::duration_cast<chrono::milliseconds>(now - lastApiCallTime);
if (elapsed.count() < MIN_TIME_BETWEEN_API_CALLS) {
// Handle API rate limit exceeded
}
// Make the API call
// ...
lastApiCallTime = now;
}
typedef struct _RESOURCE_RESERVATION {
BYTE Reserved1;
BYTE Reserved2;
WORD Flags;
WORD MemoryRequirement;
WORD MemoryReservation;
WORD MemoryLimit;
WORD TotalReservation;
WORD TotalLimit;
} RESOURCE_RESERVATION;
DWORD reservationInfoSize = sizeof(RESOURCE_RESERVATION);
RESOURCE_RESERVATION reservationInfo;
GetProcessResourceReservation(GetCurrentProcess(), &reservationInfo, &reservationInfoSize);
// Check if any resource reservations exceed the limit
if (reservationInfo.MemoryLimit < MAX_MEMORY_LIMIT
|| reservationInfo.TotalLimit < MAX_TOTAL_LIMIT) {
// Handle resource reservation limit exceeded
}
GROUP_AFFINITY groupAffinity;
GetThreadGroupAffinity(GetCurrentThread(), &groupAffinity);
// Check if the CPU affinity is within the allowed range
DWORD allowedAffinityMask = GetCurrentProcessorNumber();
if ((groupAffinity.Mask & allowedAffinityMask) == 0) {
// Handle CPU affinity limit exceeded
}
HKEY hKey;
RegOpenKeyEx(HKEY_CURRENT_USER, L"Software\\MyCompany", 0, KEY_READ, &hKey);
if (hKey != INVALID_HANDLE_VALUE) {
DWORD valueSize;
RegQueryValueEx(hKey, L"MyValue", NULL, NULL, NULL, &valueSize);
// Check if the value size exceeds the limit
if (valueSize > MAX_REGISTRY_VALUE_SIZE) {
// Handle registry value size limit exceeded
}
RegCloseKey(hKey);
}
HANDLE hThread;
hThread = GetCurrentThread();
// Check if the thread priority is within the allowed range
int threadPriority = GetThreadPriority(hThread);
if (threadPriority < MIN_THREAD_PRIORITY || threadPriority > MAX_THREAD_PRIORITY) {
// Handle thread priority limit exceeded
}
SIZE_T memoryLimit = GetProcessMemoryLimit(GetCurrentProcess(), NULL);
// Check if the process memory usage exceeds the limit
MEMORYSTATUSEX memStatus;
memStatus.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memStatus);
if (memStatus.ullTotalPhys >> 20 > memoryLimit) {
// Handle process memory limit exceeded
}
HANDLE hProcess;
hProcess = GetCurrentProcess();
// Check if the process affinity is within the allowed range
DWORD_PTR processAffinityMask;
GetProcessAffinityMask(hProcess, &processAffinityMask, NULL);
DWORD allowedAffinityMask = GetCurrentProcessorNumber();
if ((processAffinityMask & allowedAffinityMask) == 0) {
// Handle process affinity limit exceeded
}
int fileDescriptorLimit = GetProcessFileLimit(GetCurrentProcess());
// Check if the process file descriptor usage exceeds the limit
int fileDescriptorCount = GetCurrentProcessNumberOfHandles();
if (fileDescriptorCount > fileDescriptorLimit) {
// Handle process file descriptor limit exceeded
}
DWORD threadLimit = GetProcessDefaultCpuLimit(GetCurrentProcess());
// Check if the process thread usage exceeds the limit
DWORD threadCount = GetCurrentProcessNumberOfThreads();
if (threadCount > threadLimit) {
// Handle process thread limit exceeded
}