さて、ランダムパスワードを生成するための2つの別々のメソッドと、生成されたユーザーを取得して検証するための2つの別々のメソッドを持つc ++プログラムを作成していますが、メソッドでエラーが発生し、パスワードが返されます。私が間違いを犯している場所のいくつかのポインタを教えてください。特にメソッドを宣言するのに問題があります。それらがパラメータを受け取るかどうか、そしてそれらがintまたはその他である必要があるかどうかわからないためです。次のエラーが発生します:
エラーC4430:型指定子がありません-intと見なされます。注:C++はdefault-intをサポートしていません
エラーC4244:'引数':'time_t'から'unsigned int'への変換、データが失われる可能性があります
エラーC2082:仮パラメータ'str'の再定義
エラーC2660:'countLetters':関数は6つの引数を取りません
エラーC2110:'+':2つのポインタを追加できません
エラーC2660:'countLetters':関数は6つの引数を取りません
エラーC2110:'+':2つのポインタを追加できません
警告C4018:'<':符号付き/符号なしの不一致
ありがとう、
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <windows.h>
#include <ctime>
#include <string.h>
using namespace std;
#define MAX 80
//declaring functions
int showMenu();
int generatePass();
int validatePass();
int countLetters(char *, int *, int *, int *, int *);
main()
{
int iChoice;
// have menu appear, user makes decision, do work, reshow menu
// do this until user enters 5
do
{
iChoice = showMenu();
}while(iChoice != 3);
printf("\n\n\n");
system("pause");
} //end of main
//Methods placed here:
//showMenu method calls program menu,either 1.generate password,2.enter password and validate. or 3.exit(close program)
int showMenu() {
int iChoice;
system("cls");
printf("\n\n\t\tWelcome to Password Generator and Validator\n\n");
printf("\n\t\t1. Generate");
printf("\n\t\t2. Validate");
printf("\n\t\t3. Exit");
printf("\n\n\t\tEnter your menu choice: ");
fflush(stdin);
scanf("%d", &iChoice);
// user enters one of 3 values
// generate,validate or exit program
switch (iChoice) {
case 1: // generate
{
generatePass();
break;
}
case 2: // validate
{
validatePass();
break;
}
case 3: // exit
{
printf("\n\nProgram exiting!...");
break;
}
default: {
break;
}
} //end of switch
return (iChoice);
} //end of showMenu
//method to generate a random password for user following password guidelines.
string generatePass(string str) {
char password[MAX + 1];
int iChar, iUpper, iLower, iSymbol, iNumber, iTotal;
printf("\n\n\t\tGenerate Password selected ");
printf("\n\n\t\tPassword creation in progress... ");
srand(time(0));
string str =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!£$%^&*()_+=#@;";
int pos;
iChar = countLetters(password, &iUpper, &iLower, &iSymbol, &iNumber,
&iTotal);
if (iUpper < 2) {
printf("Not enough uppercase letters!!!\n");
} else if (iLower < 2) {
printf("Not enough lowercase letters!!!\n");
} else if (iSymbol < 1) {
printf("Not enough symbols!!!\n");
} else if (iNumber < 2) {
printf("Not enough numbers!!!\n");
} else if (iTotal < 9 && iTotal > 15) {
printf("Not enough characters!!!\n");
}
printf("\n\n\n Your new password is verified " + password);
printf("\n\n\n");
system("pause");
} //end of generatePass method.
//method to validate a user generated password following password guidelines.
int validatePass() {
char password[MAX + 1];
int iChar, iUpper, iLower, iSymbol, iNumber, iTotal;
//shows user password guidelines
printf("\n\n\t\tPassword rules: ");
printf(
"\n\n\t\t 1. Passwords must be at least 9 characters long and less than 15 characters. ");
printf("\n\n\t\t 2. Passwords must have at least 2 numbers in them.");
printf(
"\n\n\t\t 3. Passwords must have at least 2 uppercase letters and 2 lowercase letters in them.");
printf(
"\n\n\t\t 4. Passwords must have at least 1 symbol in them (eg ?, $, £, %).");
printf(
"\n\n\t\t 5. Passwords may not have small, common words in them eg hat, pow or ate.");
//gets user password input
printf("\n\n\t\tEnter your password following password rules: ");
gets(password);
iChar = countLetters(password, &iUpper, &iLower, &iSymbol, &iNumber,
&iTotal);
if (iUpper < 2) {
printf("Not enough uppercase letters!!!\n");
} else if (iLower < 2) {
printf("Not enough lowercase letters!!!\n");
} else if (iSymbol < 1) {
printf("Not enough symbols!!!\n");
} else if (iNumber < 2) {
printf("Not enough numbers!!!\n");
} else if (iTotal < 9 && iTotal > 15) {
printf("Not enough characters!!!\n");
}
printf("\n\n\n Your new password is verified " + password);
printf("\n\n\n");
system("pause");
} //end validatePass method
int countLetters(char * Password, int * Upper, int * Lower, int * Symbol,
int * Number) {
int iTotal = 0, iC, tU = 0, tL = 0, tS = 0, tN = 0;
//strlen- function that returns length
for (iC = 0; iC < strlen(Password); iC++) {
printf("%d", Password[iC]);
//uppercase letters are in the range 65 - 90
//lowercase letters are in the range 97 - 122
//check upper case
if ((Password[iC] < 64) && (Password[iC] < 91)) {
tU++;
iTotal++;
} else if ((Password[iC] > 96) && (Password[iC] < 123)) {
tL++;
iTotal++;
} else if ((Password[iC] > 32) && (Password[iC] < 48)) {
tS++;
iTotal++;
} else if ((Password[iC] > 47) && (Password[iC] < 58)) {
tN++;
iTotal++;
}
*Upper = tU;/*set value at memory address = tU,passing by reference saves memory used.*/
*Lower = tL;
*Symbol = tS;
*Number = tN;
} //end for statement
return (iTotal);
} //end of countLetters