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C++

Posts filed under C++

C++でDirもどき

Filed in C++, Program
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#include <windows.h>
 
int main()
{
    HANDLE hFind;
    WIN32_FIND_DATA win32fd;
 
    hFind = FindFirstFile("C:\\*.*", &win32fd);
 
    if (hFind == INVALID_HANDLE_VALUE) {
        return 1;
    }
 
    do {
        if (win32fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
            printf("%s (DIR)\n", win32fd.cFileName);
        } else {
            printf("%s\n", win32fd.cFileName);
        }
    } while (FindNextFile(hFind, &win32fd));
 
    FindClose(hFind);
     
    return 0;
}

C++ vector

Filed in C++, Program
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#include <vector>
#include <iostream>
 
int main()
{
    using namespace std;
 
    vector<int> array;
    int i;
 
    for( i = 0; i < 10; ++i )
    {
        array.push_back( i );
    }
 
    vector<int>::iterator it = array.begin();  // イテレータのインスタンス化
    while( it != array.end() )  // 末尾要素まで
    {
        cout << *it << endl;  // *演算子で間接参照
        ++it;                 // イテレータを1つ進める
    }
 
    return 0;
}