How do you transpose a tensor in LibTorch? - c++

I can't seem to figure out how to transpose a tensor in LibTorch, the (C++ version of PyTorch).
torch::Tensor one_T = torch::rand({6, 6});
int main() {
std::cout << one_T.transpose << "\n";
}
My error...
/home/iii/tor/m_gym/multiv_normal.cpp:53:24: note: mismatched types ‘const std::set<Types ...>’ and ‘at::Tensor (at::Tensor::*)(at::Dimname, at::Dimname) const’
53 | std::cout << one_T.transpose << "\n";
| ^~~~~~~~~
/home/iii/tor/m_gym/multiv_normal.cpp:53:24: note: mismatched types ‘const std::set<Types ...>’ and ‘at::Tensor (at::Tensor::*)(int64_t, int64_t) const’ {aka ‘at::Tensor (at::Tensor::*)(long int, long int) const’}
In file included from /home/iii/tor/m_gym/libtorch/include/c10/util/Logging.h:28,
from /home/iii/tor/m_gym/libtorch/include/c10/core/TensorImpl.h:17,
from /home/iii/tor/m_gym/libtorch/include/ATen/core/TensorBody.h:20,
from /home/iii/tor/m_gym/libtorch/include/ATen/core/Tensor.h:3,
from /home/iii/tor/m_gym/libtorch/include/ATen/Tensor.h:3,
from /home/iii/tor/m_gym/libtorch/include/torch/csrc/autograd/function_hook.h:3,
from /home/iii/tor/m_gym/libtorch/include/torch/csrc/autograd/cpp_hook.h:2,
from /home/iii/tor/m_gym/libtorch/include/torch/csrc/autograd/variable.h:6,


one_T.transpose(0, 1)
The 0, 1 is the type of default transpose used in PyTorch and Numpy without being specified.

Related

How to get the date from a calendar widget in gtkmm3?

So I don't understand how to get this thing working.
I already read the Class reference but the only two references to get_date() return void. How can I get the date from a calendar widget?.
I now that I'm calling the method wrong and this cause the errors.
This is my Notebook.hpp
#pragma once
#include <gtkmm.h>
class NotebookMain : public Gtk::Window{
public:
NotebookMain();
virtual ~NotebookMain();
protected:
// Signal handlers
void on_notebook_switch_page(Gtk::Widget *page, guint page_num);
void on_button_add_appointment();
// Member widgets
Gtk::Notebook notebookMain;
Gtk::Label label1, labelTest;
Gtk::Box boxDatebook, boxCalendar
Gtk::Calendar calendar;
Gtk::Button buttonAddAppointment;
};
This is my Notebook.cpp
#include <iostream>
#include "../include/NotebookMain.hpp"
NotebookMain::NotebookMain() : label1("Hello from inside Tab 2!"),
labelTest("Hello from inside Appointments"){
this->set_title("Test");
this->set_default_size(640, 480);
// Create Calendar Box
boxCalendar.set_orientation(Gtk::ORIENTATION_VERTICAL);
boxCalendar.pack_start(calendar);
buttonAddAppointment.set_label("Add Appointment");
boxCalendar.pack_start(buttonAddAppointment);
// Create Appointments Box
boxAppointments.set_orientation(Gtk::ORIENTATION_VERTICAL);
boxAppointments.pack_start(labelTest);
// Create Datebok Box
boxDatebook.set_orientation(Gtk::ORIENTATION_HORIZONTAL);
boxDatebook.pack_start(boxCalendar);
boxDatebook.pack_end(boxAppointments);
// Set Notebook
notebookMain.set_border_width(0);
// Add Notebook tabs
notebookMain.append_page(boxDatebook, "Datebook");
notebookMain.append_page(label1, "Tab 2");
// Switch tabs
notebookMain.signal_switch_page().connect(sigc::mem_fun(*this, &NotebookMain::on_notebook_switch_page));
// Get Date
buttonAddAppointment.signal_clicked().connect(sigc::mem_fun(*this, &NotebookMain::on_button_add_appointment));
// Add Main Window (Notebook)
this->add(notebookMain);
this->show_all_children();
}
NotebookMain::~NotebookMain(){}
void NotebookMain::on_notebook_switch_page(Gtk::Widget * /* page */, guint page_num){
std::cout << "Switched to tab with index : " << page_num << std::endl;
}
void NotebookMain::on_button_add_appointment(){
std::cout << "Button clicked\n";
std::cout << calendar.get_date() << "\n";
}
And the errors
src/NotebookMain.cpp: In member function ‘void NotebookMain::on_button_add_appointment()’:
src/NotebookMain.cpp:51:23: error: no matching function for call to ‘Gtk::Calendar::get_date()’
51 | calendar.get_date();
| ^
In file included from /usr/include/gtkmm-3.0/gtkmm.h:196,
from src/../include/NotebookMain.hpp:3,
from src/NotebookMain.cpp:3:
/usr/include/gtkmm-3.0/gtkmm/calendar.h:299:8: note: candidate: ‘void Gtk::Calendar::get_date(guint&, guint&, guint&) const’
299 | void get_date(guint& year, guint& month, guint& day) const;
| ^~~~~~~~
/usr/include/gtkmm-3.0/gtkmm/calendar.h:299:8: note: candidate expects 3 arguments, 0 provided
/usr/include/gtkmm-3.0/gtkmm/calendar.h:305:8: note: candidate: ‘void Gtk::Calendar::get_date(Glib::Date&) const’
305 | void get_date(Glib::Date& date) const;
| ^~~~~~~~
/usr/include/gtkmm-3.0/gtkmm/calendar.h:305:8: note: candidate expects 1 argument, 0 provided
make: *** [makefile:9: NotebookMain.o] Error 1

This solved the problem. I need to pass the arguments, and then those variables will stored the value from the calendar.
unsigned int year, month, day;
calendar.get_date(year, month, day);
Pro tip: Read the documentation right!.

Getting Blob data in caffe

I am trying to plot layer out of caffe as follow.
int ncols = (int)(sqrt (blob.channels()));
int nrows;
if(blob.channels()%ncols!=0){
nrows = ncols+1;
}
int Rows = nrows*blob.height();
int Cols = ncols*blob.width();
cv::Mat image = cv::Mat::zeros(Rows+nrows, Cols+ncols, CV_32FC1);
///////Plotting output of individual layer
if(blob.height()>1 && blob.width()>1){
cv::Size ss(blob.width(), blob.height());
Dtype* data = blob.mutable_cpu_data();
int r=0; int c=0;
for(int k=0; k < blob.channels(); k++)
{
cv::Mat channel(ss, CV_32FC1, data);
channel.copyTo(image(cv::Rect(c*blob.width()+1, r*blob.height()+1, blob.width(), blob.height())));
c++;
if(c>0 &&c%ncols==0){
r++;
c=0;
}
channel.release();
data += ss.area();
}
}
For that I have error as
CXX src/caffe/net.cpp
src/caffe/net.cpp: In instantiation of ‘void caffe::Net<Dtype>::ForwardDebugInfo(int) [with Dtype = float]’:
src/caffe/net.cpp:1040:1: required from here
src/caffe/net.cpp:632:49: error: passing ‘const caffe::Blob<float>’ as ‘this’ argument discards qualifiers [-fpermissive]
Dtype* data = blob.mutable_cpu_data();
^
In file included from ./include/caffe/layer.hpp:8:0,
from src/caffe/net.cpp:11:
./include/caffe/blob.hpp:225:10: note: in call to ‘Dtype* caffe::Blob<Dtype>::mutable_cpu_data() [with Dtype = float]’
Dtype* mutable_cpu_data();
^
src/caffe/net.cpp: In instantiation of ‘void caffe::Net<Dtype>::ForwardDebugInfo(int) [with Dtype = double]’:
src/caffe/net.cpp:1040:1: required from here
src/caffe/net.cpp:632:49: error: passing ‘const caffe::Blob<double>’ as ‘this’ argument discards qualifiers [-fpermissive]
Dtype* data = blob.mutable_cpu_data();
^
In file included from ./include/caffe/layer.hpp:8:0,
from src/caffe/net.cpp:11:
./include/caffe/blob.hpp:225:10: note: in call to ‘Dtype* caffe::Blob<Dtype>::mutable_cpu_data() [with Dtype = double]’
Dtype* mutable_cpu_data();
^
Makefile:575: recipe for target '.build_debug/src/caffe/net.o' failed
make: *** [.build_debug/src/caffe/net.o] Error 1
What does that error means?
Earlier version of caffe, it was fine. I did it before.
Now what could be the error?

That error translates as "You pass a const object as this argument to a non-const method mutable_cpu_data"
const Dtype* cpu_data() const;
Dtype* mutable_cpu_data();
"Passing an object as this argument" suggests use of operators . or -> to access object's method and use of operator().
If you do that, you potentially can change const object, so it's an error, unless permissive mode engaged.

Libtorrent set_settings error

I'm trying to set the session settings but I'm getting an error I don't quite understand, I am able to get the session settings OK and according to the Libtorrent docs I simply pass the session_settings structure to set_settings once I have changed any values.
using namespace libtorrent;
session* Session;
session_status* Session_Status;
session_settings* Session_Settings;
bool Start_Client_Sess()
{
Session = new session;
Session_Status = new session_status;
Session_Settings = new session_settings;
Session->settings( );
std::cout << "upload_rate_limit " << Session_Settings->upload_rate_limit << " \n";
std::cout << "dht_announce_interval " << Session_Settings->dht_announce_interval << " \n";
Session_Settings->upload_rate_limit = 200;
Session_Settings->dht_announce_interval = 1800;
Session->set_settings( Session_Settings ); // error
}
Error:
1>Source\Client_F.cpp(66): error C2664: 'void libtorrent::session::set_settings(const libtorrent::session_settings &)' : cannot convert argument 1 from 'libtorrent::session_settings *' to 'const libtorrent::session_settings &'
1> Reason: cannot convert from 'libtorrent::session_settings *' to 'const libtorrent::session_settings'
1> No constructor could take the source type, or constructor overload resolution was ambiguous

As the error message says, you don't have to pass a pointer to this function.
Session->set_settings( *Session_Settings );

Error while XOR ing C++

I have problem, when i compile this code
#include <iostream>
using namespace std;
int main(){
const unsigned long box[256]= { 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A };
for (int x = 0;x<=255;x++){
cout<< sbox[x]^ sbox[x]<<endl;
}
return 0;
}
I get an error which says:
[Error] invalid operands of types ‘const long unsigned int’ and
‘<unresolved overloaded function type>’ to binary ‘operator<<’".
What is wrong with my code?

Order of operations: << is higher than ^.
Put parentheses around sbox[x]^ sbox[x]:
cout << (sbox[x]^sbox[x]) << endl;

Displaying a value in a text box-Error

I have
size_t sums[4] = {0, 0, 0, 0};
and a text box in which I am trying to display the value that I get after I've done some operations on it. The value is in sums[i] , however now I want to display the value in the textbox, I am doing this:
*TextBox4 << "hello" << size_t sums;
frame->Connect(TEXT_BOX4, wxEVT_COMMAND_BUTTON_CLICKED | wxEVT_COMMAND_ENTER, (wxObjectEventFunction) & MyFrame::OnGenerateKey);
TextBox4 = new wxTextCtrl(this, TEXT_BOX4, wxT(""), wxPoint(200, 200), wxSize(200, 20), wxTE_PROCESS_ENTER | wxTE_READONLY | wxTE_LEFT, wxDefaultValidator, wxT("WxTextBox4"));
however it generates the following errors
base.cpp:212:22: error: ambiguous overload for 'operator<<' in '*((MyFrame*)this)->MyFrame::TextBox4 << sum'
base.cpp:212:22: note: candidates are:
C:\wxWidgets-2.8.12\include/wx/textctrl.h:419:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(const wxString&)
C:\wxWidgets-2.8.12\include/wx/textctrl.h:420:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(int)
C:\wxWidgets-2.8.12\include/wx/textctrl.h:421:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(long int)
C:\wxWidgets-2.8.12\include/wx/textctrl.h:422:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(float)
C:\wxWidgets-2.8.12\include/wx/textctrl.h:423:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(double)
C:\wxWidgets-2.8.12\include/wx/textctrl.h:424:17: note: wxTextCtrl& wxTextCtrlBase::operator<<(wxChar)
Please help me.

First of all you can not print a static array like that, you need to iterate over it. Second - you should only print sums without the type:
*TextBox4 << "hello" << sums;
Still this may not be enough to help you - I need more context.