std/error

Error codes and signal handling for system-level error management.

Error Codes

std::NotFound

Value: -1 - Resource or element not found

std::NotEnoughMemory

Value: -2 - Insufficient memory available

std::BeyondSize

Value: -3 - Index or size exceeds bounds

Signal Constants

std::SigInt

Value: 2 - Interrupt signal (Ctrl+C)

std::SigIll

Value: 4 - Illegal instruction

std::SigFpe

Value: 8 - Floating-point exception

std::SigKill

Value: 9 - Kill signal (cannot be caught)

std::SigSegv

Value: 11 - Segmentation fault

std::SigAlarm

Value: 14 - Alarm clock signal

std::SigTerm

Value: 15 - Termination signal

std::SigStop

Value: 19 - Stop process

std::SigBreak

Value: 21 - Break signal

std::SigAbort

Value: 22 - Abort signal

Signal Handlers

std::SigDefault

Default signal handler (terminates process)

std::SigIgnore

Ignore signal handler

Functions

signal

void signal(int flag, void(int) catcher)

Registers a signal handler for the specified signal. Platform-specific implementation:

• Linux: Uses sigaction system call
• Windows: Uses SetConsoleCtrlHandler for SigInt and SigTerm
• Other: Uses POSIX signal function

Example

import <std/error>

void handleInterrupt(int sig) {
    std::print("Caught interrupt signal\n");
    std::exit(0);
}

std::signal(std::SigInt, handleInterrupt);