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[Solved] String and Vector woes

 
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keyz182



Joined: 23 May 2008
Posts: 2
PostPosted: Sat May 24, 2008 12:01 am    Post subject: [Solved] String and Vector woes Reply with quote
I've recently been moving from java to c/c++ and decided to try it on't psp. At the moment i'm messing with file operations and such, and am simply trying to read all the mp3 file paths into a vector of strings. However, when I compile I get some somewhat incomprehensible errors. I did find one similar situation, but the answer given there didnt work and that was to add the "-lstdc++" lib to the Makefile.

Source:

Code:

#include <pspdisplay.h>
#include <pspctrl.h>
#include <pspkernel.h>
#include <pspctrl.h>
#include <pspdebug.h>
#include <pspaudio.h>
#include <pspaudiolib.h>
#include <pspiofilemgr.h>
#include <pspiofilemgr_stat.h>
#include <pspiofilemgr_dirent.h>
#include <vector>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//#include "songlist.cpp"

PSP_MODULE_INFO("Files", 0, 1, 1);
using namespace std;


vector<string> slist;

//#define printf pspDebugScreenPrintf

//There be dragons here:
/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback,
NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread,
0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}

void getList(char *path){
   char newPath[80];
   SceUID fd = sceIoDopen(path);
   if (fd >= 0) {
      char *curdir;
         for (;;) {
               struct SceIoDirent entry;
               memset(&entry, 0, sizeof(struct SceIoDirent));
               if (sceIoDread(fd, &entry) <= 0)
                  break;
         if ((entry.d_stat.st_mode&FIO_S_IFDIR)==FIO_S_IFDIR) {
            if(!strcmp(entry.d_name,".") || !strcmp(entry.d_name,"..")){
               
            } else {
               //printf("%s [DIR]\n", entry.d_name);
               sprintf(newPath, "%s%s", path,entry.d_name);
               //printf("  ==>  %s\n",newPath);
               getList(newPath);
               
               sprintf(curdir,"%s",newPath);
            }            
         } else {   
            string tmp(entry.d_name);
            //sprintf(tmp,"%s", entry.d_name);
            slist.push_back(tmp);
            //printf("%s [FILE]\n", entry.d_name);
            //a->insertBack(0,*entry.d_name);
            
         }
         }
   }
   sceIoDclose(fd);
}

int main () {
   pspDebugScreenInit();
   SetupCallbacks();
   char file[40] = "ms0:/MUSIC/";
   getList(file);
   /*song tmp;
   for(int i = 0; i < list.size(); i++){
      tmp = list.at(i);
      printf("%s\n",tmp.path);
   }*/
   sceKernelSleepThread();
   return 0;
}


Log:
Code:

make -k
psp-g++ -I.. -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -I.. -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -fno-exceptions -fno-rtti -D_PSP_FW_VERSION=390    -c -o main.o main.cpp
main.cpp: In function ‘void getList(char*)’:
main.cpp:81: error: variable ‘std::string tmp’ has initializer but incomplete type
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_vector.h: In destructor ‘std::_Vector_base<_Tp, _Alloc>::~_Vector_base() [with _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, _Alloc = std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >]’:
mksfo 'File Manipulation' PARAM.SFO
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_vector.h:203:   instantiated from ‘std::vector<_Tp, _Alloc>::vector(const _Alloc&) [with _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, _Alloc = std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >]’
main.cpp:22:   instantiated from here
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_vector.h:119: error: invalid use of undefined type ‘struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stringfwd.h:56: error: declaration of ‘struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h: In function ‘void std::__destroy_aux(_ForwardIterator, _ForwardIterator, __false_type) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*]’:
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:155:   instantiated from ‘void std::_Destroy(_ForwardIterator, _ForwardIterator) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*]’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:182:   instantiated from ‘void std::_Destroy(_ForwardIterator, _ForwardIterator, std::allocator<_T2>) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*, _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_vector.h:272:   instantiated from ‘std::vector<_Tp, _Alloc>::~vector() [with _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, _Alloc = std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >]’
main.cpp:22:   instantiated from here
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:121: error: cannot increment a pointer to incomplete type ‘std::basic_string<char, std::char_traits<char>, std::allocator<char> >’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h: In function ‘void std::_Destroy(_Tp*) [with _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’:
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:122:   instantiated from ‘void std::__destroy_aux(_ForwardIterator, _ForwardIterator, __false_type) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*]’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:155:   instantiated from ‘void std::_Destroy(_ForwardIterator, _ForwardIterator) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*]’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:182:   instantiated from ‘void std::_Destroy(_ForwardIterator, _ForwardIterator, std::allocator<_T2>) [with _ForwardIterator = std::basic_string<char, std::char_traits<char>, std::allocator<char> >*, _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_vector.h:272:   instantiated from ‘std::vector<_Tp, _Alloc>::~vector() [with _Tp = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, _Alloc = std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >]’
main.cpp:22:   instantiated from here
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stl_construct.h:107: error: invalid use of undefined type ‘struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >’
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../include/c++/4.1.0/bits/stringfwd.h:56: error: declaration of ‘struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >’
make: *** [main.o] Error 1
make: Target `all' not remade because of errors.


Thanks for any help, I've spent the last day or so hunting for soloutions, each one leading to another error :(

Last edited by keyz182 on Sat May 24, 2008 11:53 pm; edited 1 time in total
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jimparis



Joined: 10 Jun 2005
Posts: 1179
Location: Boston
PostPosted: Sat May 24, 2008 12:13 am    Post subject: Reply with quote
Probably the first error is because you forgot to "#include <string>" or similar. This forum is not here to help teach people C++, so you won't find much help.
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keyz182



Joined: 23 May 2008
Posts: 2
PostPosted: Sat May 24, 2008 12:18 am    Post subject: Reply with quote
thanks, I was advised to change #include <string> to #include <string.h> seems changing it back did the trick
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hlide



Joined: 10 Sep 2006
Posts: 750
PostPosted: Sat May 24, 2008 3:46 am    Post subject: Reply with quote
keyz182 wrote:
thanks, I was advised to change #include <string> to #include <string.h> seems changing it back did the trick


<string> and <string.h> are totally different beasts :

1) <string.h> or <cstring> gives you standard functions like strlen, strcat, and so on

2) <string> gives you std::string

just remind it : STL headers don't have a ".h" suffix.

<vector> ==> std::vector<...>
<map> ==> std::map<...>
<pair> ==> std::pair<...>
etc.
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