不会读取完整的文件 C++

Question

I am trying to populate a linked list with creatures from a file. However, when I do it reads the first one but no other creatures. I cannot pass an int to get the number of creatures because it is not static.

I have the following code

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

void clearBuffer() {
    cin.clear();
    cin.ignore(100, '\n');
}

void enterMagicalCreatureFromFile() {
    string filepath = "test.txt";
    ifstream creatureFile;
    creatureFile.open(filepath);
    if (!creatureFile) {
        cerr << "Unable to open file " << filepath << endl;
        return;
    }
    string name, description;
    float cost;
    char danger;
    int numCreated = 0;
    while (getline(creatureFile, name) && getline(creatureFile, description) && creatureFile >> danger && creatureFile >> cost) {
        cout << "name: " << name << " desc: " << description << " danger: " << danger << " cost: " << cost << endl;
        numCreated++;
    }
    cout << numCreated << " creatures from " << filepath << " have been added to the zoo" << endl;
}

int main() {
    enterMagicalCreatureFromFile();
}

The file test.txt looks like

Beholder
Giant center eye and twelve eye stalks above it.  It is a flying eyeball.  Mouth full of razor sharp teeth.  Eye stalks shoot various beams of magical death-dealing energy.
1
750.85
Banshee
The English Banshee is a fairy woman who wails when death is approaching.They do not cause death, only mourn it.  Banshees are almost always female, and are usually seen with long, dark, black hair and pale chees.  Their eyes also are usually red from crying.
0
15.5
Troll
Ugly and big.  Sometimes smell bad.
1
85648.34
Mike Wazowski
One-eyed, funny green monster.  A scare assistant to James P. Sullivan at Monsters, Inc.  Mike doesn't want any interruptions in his life.
0
455.32
Unicorn
The unicorn is a legendary creature that has been described since antiquity as a beast with a single large, pointed, spiraling horn projecting from its forehead. 
0
24.32
Sasquatch
The sasquatch is also called Big Food.  Bigfoot is a cryptid in American folklore, supposedly a simian-like creature that inhabits forests, especially those of the Pacific Northwest. Bigfoot is usually described as a large, hairy, bipedal humanoid.
1
39475.93

As I said the first creature "Beholder" loads and get added to the list perfectly, so I don't think my logic is in the list or the creature file.

I am stuck, any pointers?

Answer 1

After reading the double cost , there's a newline waiting in the creatureFile stream.

We need to advance past that with ignore() before reading the next creature:

while (std::getline(creatureFile, name)
       && std::getline(creatureFile, description)
       && creatureFile >> danger
       && creatureFile >> cost)
{
    std::cout << "name: " << name
              << " desc: " << description
              << " danger: " << danger
              << " cost: " << cost
              << std::endl;
    ++numCreated;
    creatureFile.ignore(100, '\n');
}