$vi hey.c $gcc -fprofile-arcs -ftest-coverage hey.c $./a.out Hey 🙂 $gcov hey.c File ‘hey.c’ Lines executed:100.00% of 3 hey.c:creating ‘hey.c.gcov’ $cat hey.c.gcov -: 0:Source:hey.c -: 0:Graph:hey.gcno -: 0:Data:hey.gcda -: 0:Runs:1 -: 0:Programs:1 -: 1:#include 1: 2:main() -: 3:{ 1: 4:printf(” Hey 🙂 \n”); 1: 5:} $ The “.gcov” files can be examined using a normal editor. …
Category Archives: Uncategorized
dd – convert and copy a file
$dd conv=ucase god is love GOD IS LOVE 0+2 records in 0+1 records out 12 bytes (12 B) copied, 48.6009 s, 0.0 kB/s $ conv=CONVS convert the file as per the comma separated symbol list ucase — change lower case to upper case Reference : Debian Manual for dd.
detex for tex.
detex – a filter to strip TeX commands from a .tex file. $cat resume.tex \documentclass[10pt,a4paper,twocolumn]{article} \date{} \usepackage{amsmath} \setlength\topmargin{0in} \setlength\headheight{0in} \setlength\headsep{0in} \setlength\oddsidemargin{0in} \setlength\evensidemargin{0in} \begin{document} \title {\texttt{R\'{e}sum\'{e}}} \maketitle \section*{\texttt{IDEA}} \texttt{Work for student community} \\ output after detex resume.tex | more [10pt,a4paper,twocolumn]article amsmath 0in 0in 0in 0in 0in Resume *IDEA Work for student community to help acquire knowledge. …
struct keyword and getopt_long
The getopt() function parses the command-line arguments. Its arguments argc and argv are the argument count and array as passed to the main() function on program invocation. An element of argv that starts with ‘-‘ (and is not exactly “-” or “–“) is an option element. The characters of this element (aside from the initial …
gtf . generalized timing formula
$gtf 1024 768 75 # 1024×768 @ 75.00 Hz (GTF) hsync: 60.15 kHz; pclk: 81.80 MHz Modeline “1024x768_75.00” 81.80 1024 1080 1192 1360 768 769 772 802 -HSync +Vsync $ Generalized Timing Formula is a standard by VESA which defines exact parameters of the component video signal for analog VGA display interface. The parameters defined …
signal "expose-event"
g_signal_connect . The second argument for this function is detailed_signal : a string of the form “signal-name::detail”. source :http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html GtkWidget is the base class for all widgets. “expose-event” is an signal and the signal list is available at http://library.gnome.org/devel/gtk/unstable/GtkWidget.html
IP Puzzles +
Amidst the traffic of the Internet is an enormous amount of undesirable communication. Currently there is no significant disincentive for clients who contribute to this flood of undesirable communication. A mechanism for punishing only the malicious is required in order to discourage clients from behaving badly. The standard response has been to disconnect clients exhibiting …
programming tip 1.
In CAIRO + GTK programming.The GTK part will be in the main() function. and cairo API will be in the functions that GTK calls. Ofcourse GTK API can be in the functions too, but CAIRO will not be inside main() normally.
rectangle +
A closed planar quadrilateral with opposite sides of equal lengths and , and with four right angles. A square is a degenerate rectangle with a=b The area of the rectangle is A=ab and its polygon diagonals p and q are of length [latex] p = q = \sqrt{(a{^2}+b{^2})} [/latex] A rectangle has a circumcircle with …
definition circle.
A circle is the set of points equidistant from a point C(h,k) called the center. The fixed distance r from the center to any point on the circle is called the radius. The standard equation of a circle with center C(h,k) and radius r is as follows. [latex] (x-h){^2} + (y-k){^2} = r{^2} [/latex] Reference. …