AhmedSamara

//  gcc -finstrument-functions your_file.c -o your_program

void __attribute__((no_instrument_function)) __cyg_profile_func_enter(void *this_fn, void *call_site) {
    printf("Entering %p\n", this_fn);
}

void __attribute__((no_instrument_function)) __cyg_profile_func_exit(void *this_fn, void *call_site) {
    printf("Exiting %p\n", this_fn);
}

AhmedSamara

#include <unordered_set>
#include <queue>
#include <assert.h>
#include <stdexcept>

template <class T>
class UniqueQueu {

    public:

AhmedSamara

#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define SIZE 4

// mpic++ -o prog.exe hello.cpp
// mprin -np prog.exe

AhmedSamara

import PyPDF2
import subprocess

pdfIn = open('presentations.pdf', 'rb')

reader = PyPDF2.PdfFileReader(pdfIn)

writer = PyPDF2.PdfFileWriter()

for i in range(reader.numPages):

AhmedSamara

To remove a submodule you need to:

• Delete the relevant section from the .gitmodules file.
• Stage the .gitmodules changes git add .gitmodules
• Delete the relevant section from .git/config
• Run git rm --cached path_to_submodule (no trailing slash).
• Run rm -rf .git/modules/path_to_submodule (no trailing slash).
• Commit git commit -m "Removed submodule <name>"
• Delete the now untracked submodule files rm -rf path_to_submodule

AhmedSamara

[root@localhost ~]# udevadm info -a /dev/video1

Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.

  looking at device '/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/video4linux/video1':
    KERNEL=="video1"

AhmedSamara

Bus 001 Device 004: ID 04f2:a149 Chicony Electronics Co., Ltd 
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64

AhmedSamara

import numpy as np
import cv2
from matplotlib import pyplot as plt

#http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_feature2d/py_matcher/py_matcher.html

def drawMatches(img1, kp1, img2, kp2, matches):
    """
    source:
    http://stackoverflow.com/questions/20259025/module-object-has-no-attribute-drawmatches-opencv-python

AhmedSamara

import numpy as np
import cv2
import imutils

cap = cv2.VideoCapture(0)

while True:
    # Capture frame-by-frame
    ret, frame = cap.read()

AhmedSamara

import numpy as np
import cv2
import imutils

cap = cv2.VideoCapture(0)

while True:
    # Capture frame-by-frame
    ret, frame = cap.read()