[捉虫记录] access violation writing location _findnext

Bertha 。 2022-08-04 12:52 143阅读 0赞

jeremy lin

在Windows 10中VS2013下运行如下程序：

void getFiles(string path, vector<string>& files)
    {
    	long hFile = 0;
    
    	// _finddata_t ÊÇÓÃÀ´´æ´¢ÎÄ¼þ¸÷ÖÖÐÅÏ¢µÄ½á¹¹Ìå
    	struct _finddata_t fileinfo;
    	string p;
    
    	// 
    	if ((hFile = _findfirst(p.assign(path).append("\\*").c_str(), &fileinfo)) != -1)
    	{
    		do
    		{
    			if ((fileinfo.attrib &  _A_SUBDIR))
    			{
    				if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
    				{
    					files.push_back(p.assign(path).append("\\").append(fileinfo.name));
    					getFiles(p.assign(path).append("\\").append(fileinfo.name), files);
    				}
    			}
    			else
    			{
    				files.push_back(p.assign(path).append("\\").append(fileinfo.name));
    			}
    
    		} while (_findnext(hFile, &fileinfo) == 0);
    
    		_findclose(hFile);
    	}
    
    }
    
    void getFilesFormat(string path, vector<string>& files, string format)
    {
    
    	//long   hFile = 0;
    	intptr_t hFile = 0;
    	struct _finddata_t fileinfo;
    	string p;
    	if ((hFile = _findfirst(p.assign(path).append("\\*" + format).c_str(), &fileinfo)) != -1)
    	{
    		do
    		{
    			if ((fileinfo.attrib &  _A_SUBDIR))
    			{
    				if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
    				{
    					getFilesFormat(p.assign(path).append("\\").append(fileinfo.name), files, format);
    				}
    			}
    			else
    			{
    				files.push_back(p.assign(path).append("\\").append(fileinfo.name));
    			}
    		} while (_findnext(hFile, &fileinfo) == 0);
    
    		_findclose(hFile);
    	}
    }

报如下错误：

access violation writing location

![Center][]

note：在win10 vs2015情况下运行程序未报错。

解决方案：

把long hFile改成 intptr\_t hFile

[Center]: /images/20220731/c1dfb84f6f64408492ab81ff459a47cf.png