package common

import (
	"os"
	"fmt"
	"strconv"
)

func Perror(function string, err error) error {
	return fmt.Errorf("%s(): %w", function, err)
}

func Error(format string, a ... any) (int, error) {
	fmt.Fprintf(os.Stderr, "error: ")
	if (len(a) == 0) {
		return fmt.Fprintf(os.Stderr, format)
	} else {
		return fmt.Fprintf(os.Stderr, format, a)
	}
}

func Intify(s string) (int, error) {
	i, err := strconv.ParseInt(s, 0, 0)
	return int(i), err
}