錯誤C3861：'getLine'：標識符未找到

-3

我已經開始從SEE編程抽象（CS106B）。我很難開始分配任務。這是熱身練習的代碼。我已經諮詢了各種不同的解決方案，但他們都沒有工作，因此被迫在這裏發佈。錯誤C3861：'getLine'：標識符未找到

#include <iostream> 
#include <cstring> 
#include "console.h" 
using namespace std; 

/* Constants */ 

const int HASH_SEED = 5381;    /* Starting point for first cycle */ 
const int HASH_MULTIPLIER = 33;   /* Multiplier for each cycle  */ 
const int HASH_MASK = unsigned(-1) >> 1; /* All 1 bits except the sign  */ 

/* Function prototypes */ 

int hashCode(string name); 

/* Main program to test the hash function */ 

int main() { 
    string name = getLine("Please enter your name: "); 
    int code = hashCode(name); 
    cout << "The hash code for your name is " << code << "." << endl; 
    return 0; 
} 

/* 
* Function: hash 
* Usage: int code = hashCode(key); 
* -------------------------------- 
* This function takes the key and uses it to derive a hash code, 
* which is nonnegative integer related to the key by a deterministic 
* function that distributes keys well across the space of integers. 
* The general method is called linear congruence, which is also used 
* in random-number generators. The specific algorithm used here is 
* called djb2 after the initials of its inventor, Daniel J. Bernstein, 
* Professor of Mathematics at the University of Illinois at Chicago. 
*/ 

int hashCode(string str) { 
    unsigned hash = HASH_SEED; 
    int nchars = str.length(); 
    for (int i = 0; i < nchars; i++) { 
     hash = HASH_MULTIPLIER * hash + str[i]; 
    } 
    return (hash & HASH_MASK); 
}

編譯日誌：

所有的

> 1>------ Build started: Project: Warmup, Configuration: Debug Win32 ------ 
1>Compiling... 
1>Warmup.cpp 
1>c:\users\users\google drive\courses\programming abstractions (stanford cs106b) 2012\assignments\assignment1-vs2008\assignment1-vs2008\0-warmup\src\warmup.cpp(30) : error C3861: 'getLine': identifier not found 
1>Build log was saved at "file://c:\Users\Users\Google Drive\Courses\Programming Abstractions (Stanford CS106B) 2012\Assignments\Assignment1-vs2008\Assignment1-vs2008\0-Warmup\Warmup\Debug\BuildLog.htm" 

1>Warmup - 1 error(s), 0 warning(s) 
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

來源

2014-06-25 kj007

'getLine（）'不是標準的C或C++函數。在C++標準庫和POSIX C庫中有各種形式的getline（）。 C是區分大小寫的語言; C++也是如此。此外，使用C和C++進行雙重標記會導致憤怒（試圖響應的部分）或混淆（試圖理解的部分），因爲它們是非常不同的語言。 –

谷歌搜索「C++ getLine」直接導致我http://en.cppreference.com/w/cpp/string/basic_string/getline – chris

@chris'getline'不是'getLine' ... –

通過文檔Stanford's C++ library，通過（我知道這聽起來令人難以置信，但這是事實）的主頁CS106B找到一個快速的翻找，表明你應該

#include "simpio.h"

我建議您收藏的文件;它會讓你免遭許多深夜功課的恐慌。

來源

2014-06-25 14:39:53 molbdnilo

Phew。謝謝。我應該能夠看穿它。無論如何，感謝解決方案以及建議！ – kj007

首先你，你必須包含頭<string>而不是<cstring>

#include <string>

其次要使用getline而不是getLine。並且參數的類型和數量被錯誤地指定。也許你想使用其他一些用戶定義的函數getLine。

來源

2014-06-25 14:34:00

錯誤C3861：'getLine'：標識符未找到

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