How to create dynamic 2d array in C++ ? This is a code to create 2D array in C++ : float **ArrayLib::create2Array_float(int row, int col) { int i; float **out; out = new float*[row]; out[0] = new float[row*col]; for(i=1; i<row; i++) { out[i] = out[i-1] + col; } return out; } If you want to
We can type “mkdir dirname” command at konsole to create dirname directory. If we can create a directory from C/C++ we can use command mkdir(path, mode) to create directory. Example : #include <sys/stat.h> #include <sys/types.h> #include <stdio.h> #include <stdlib.h> main() { if(mkdir("pathname",0777)==-1)//creating a directory { printf("error create directory\n"); exit(1); } else printf("success create directory\n"); }
Window output from QDialog dont have Maximize and Minimize button at left top window form. We can add Maximize and Minimize at QDialog with code : int main(int argc, char *argv) { QApplication a(argc, argv); Dialog w; w.setWindowFlags(Qt::Window); // add this. w.show(); return a.exec(); } Source : http://www.qtcentre.org/threads/17593-QDialog-with-Close-Maximize-and-Context-Help-Buttons
When we write command at konsole, linux would write history from our command at bash user history. This file located at /home/username/.bash_history. If we want remove all history from our konsole, we can remove this file or open this file and remove specifics our command history. Source : http://ubuntuforums.org/showthread.php?t=991359
