Code does not work with generic type Vector<T> in C++ -

i trying send images server through code, code breaks down in method void filesend(const vector& fnames). have overloaded function void filesend(const char* fpath). when did not overload function, able send 1 image, when overloaded void filesend(const vector& fnames), stops in main() @ line " client.filesend(filenames); ". tried finding out problem, not able find it.

#define _crt_secure_no_warnings #define _crt_nonstdc_no_deprecate #include <windows.h> #include <winsock.h> #include <stdio.h> #include <iostream> #include <signal.h> #include <stdio.h> #include <fstream> #include <vector> #include <string>  using namespace std;  #pragma comment (lib, "ws2_32.lib") #pragma comment (lib, "mswsock.lib") #pragma comment (lib, "advapi32.lib")  class client { public:     socket sock, clientt;     void s_handle(int s)     {         if (sock)             closesocket(sock);         if (clientt)             closesocket(clientt);         wsacleanup();         cout << "exit signal :" << s;         exit(0);     }      void s_cl(char *a, int x)     {         cout << a;         s_handle(x + 1000);     }      int senddata(char *sendbuf)     {         return send(sock, sendbuf, strlen(sendbuf), 0);     }      int recvdata(char *recvbuf, int size)     {         int sz = recv(sock, recvbuf, size, 0);         recvbuf[sz] = '\0';         return sz;     }      void filesend(const char *fpath)     {         // extract filename given path.         char filename[50];         int = strlen(fpath);         (; > 0; i--)         {             if (fpath[i - 1] == '\\')                 break;         }         (int j = 0; <= (int)strlen(fpath); i++)         {             filename[j++] = fpath[i];         }          ifstream myfile(fpath, ios::in | ios::binary | ios::ate);         int size = (int)myfile.tellg();         myfile.close();          char filesize[10]; itoa(size, filesize, 10);         send(sock, filename, strlen(filename), 0);         char rec[32] = ""; recv(sock, rec, 32, 0);          send(sock, filesize, strlen(filesize), 0);         recv(sock, rec, 32, 0);          file *fr = fopen(fpath, "rb");          while (size > 0)         {             char buffer[1030];              if (size >= 1024)             {                 fread(buffer, 1024, 1, fr);                 send(sock, buffer, 1024, 0);                 recv(sock, rec, 32, 0);             }             else             {                 fread(buffer, size, 1, fr);                 buffer[size] = '\0';                 send(sock, buffer, size, 0);                 recv(sock, rec, 32, 0);             }             size -= 1024;         }         fclose(fr);     }       void filesend(const vector<string>& fnames)     {         (int k = 0; k < fnames.size(); k++)         {             filesend(fnames[k].c_str()); // call original function         }     } };  int main(int argc, char *argv[]) {     client client;     handle hstdout = getstdhandle(std_output_handle);     setconsoletextattribute(hstdout, foreground_green | foreground_intensity);      //declarations     dword poll;     int res, = 1, port = 999;     char buf[100];     char msg[100] = "";     char ip[15];     wsadata data;     cout << "\t\t\t\tthis client";     cout << "\n\n\t\t\tenter server ip connect to: ";     gets(ip);      sockaddr_in ser;     sockaddr addr;      ser.sin_family = af_inet;     ser.sin_port = htons(123);                    //set port     ser.sin_addr.s_addr = inet_addr(ip);      //set address want connect      memcpy(&addr, &ser, sizeof(sockaddr_in));     res = wsastartup(makeword(1, 1), &data);      //start winsock     cout << "\n\nwsastartup"         << "\nversion: " << data.wversion         << "\ndescription: " << data.szdescription         << "\nstatus: " << data.szsystemstatus << endl;      if (res != 0)         client.s_cl("wsastarup failed", wsagetlasterror());      client.sock = socket(af_inet, sock_stream, ipproto_tcp);       //create socket     if (client.sock == invalid_socket)         client.s_cl("invalid socket ", wsagetlasterror());     else if (client.sock == socket_error)         client.s_cl("socket error)", wsagetlasterror());     else         cout << "socket established" << endl;      res = connect(client.sock, &addr, sizeof(addr));               //connect server     if (res != 0)     {         client.s_cl("server unavailable", res);     }     else     {         cout << "\nconnected server: ";         memcpy(&ser, &addr, sizeof(sockaddr));     }      char recvddata[100] = "";     int ret;     vector<string> filenames;      char rec[32] = "";     client.senddata("filesend");     client.recvdata(rec, 32);     string path = "c:\\images:\\";     string imagename;     string fullpath;     int numberofimages;      while (true)     {         cout << "enter number of images want send : ";         cin >> numberofimages;          (int = 0; < numberofimages; i++)         {             cout << "select image:";             cin >> imagename;             fullpath = path + imagename;             filenames.push_back(fullpath);         }          client.filesend(filenames);         printf("file sent.............\n");         ret = recv(client.sock, recvddata, sizeof(recvddata), 0);         if (ret > 0)         {             cout << endl << recvddata;             strcpy(recvddata, "");         }     }      closesocket(client.clientt);     wsacleanup(); } 

i unable run program , reproduce problem you're facing because didn't provide server code.

but, think you've problems path in line:

string path = "c:\\images:\\"; 

probably like:

string path = "c:\\images\\";