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Archives -
Posts tagged as 'c'
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“Calling Lua function from c++ is very simple. Value passing between c++ and Lua goes through stack, Lua C API provides a convenience ways for ...” Continue
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“When I was assigned a project to create a text console based simulator, I am looking into how to keep a history list of entered ...” Continue
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“Sometimes you need to construct a structure which the variables in the structure is not specified in bytes, instead bits. It may occur when you ...” Continue
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“A simple challenge for c/c++ fans, use only 2 variable and 2 for loop to print a pascal triangle looks as bellow
...” Continue
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“This is an interesting quest given by my friend who working in Intel, during our conversation online.
How to swap two variables ?
Let say A=123 and ...” Continue
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“Don't know whether you aware of the example code at Tap the interrupt signal, I am using sleep(1) within endless loop at the first sample ...” Continue
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“When you hit control+c, you are actually send a SIGINT ( Interrupt signal ) to your program. By default, your program will be terminated after ...” Continue
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“The title sounds a bit awkward, let my briefly explain what is it all about.
In my program, I want to wait for user input, ...” Continue
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“Do you feel like writing a nice CLI Application? Where you can manipulate your text in any position and any combination of colors. There are ...” Continue
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“If you wanna create a time stamp that display date and time, you can simply uses asctime() and localtime(), time() and a time_t variable to ...” Continue
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“It is very important to clean your container before you put your stuff in. It might dirty your stuff if you do not do so. ...” Continue
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“We can actually do this to print text on screen,
fprintf(stdout,"Hello %s\n","World");
But why?
Try to imagine that you are doing a debug log file function, which ...” Continue
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“To write formatted string to files, the easiest way is uses fprintf. It works exactly the same way like printf.
File * fp=fopen("filename","w");
fprintf(fp,"%s.%s = %d\n", ...” Continue
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“Notice that almost all linux programs have command-line options, you can pass in the arguments to your programs. Some common arguments such as:
dummy -v
dummy --help
So ...” Continue
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“Move your cursors to any position and print, it does the way just like how to change the color and attributes of the font illustrated ...” Continue
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“Printing color strings uses only printf, without any alternative libraries such as ncurses? Yes, we can do that in any unix based operating system that ...” Continue
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“The simplest debug technique is to print out a line contains the required variables value. By printing out a line at a suspect bugs point, ...” Continue
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“The printf function can have variable length of arguments pass into the function. Sometimes we might want to create a customized printf like function. Observed ...” Continue
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“In order to store a particular value to variable from a string, we can use sscanf.
Definition:
int sscanf(const char *str, const char *format, ...);
To store a ...” Continue
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“Sometimes we might need to declare global variable. Let say I have 5 files (cat.c, dog.c, tiger.c, rabbit.c and animal.c). I declare a global integer ...” Continue
