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How to get the current directory in a C program?
I'm making a C program where I need to get the directory that the program is started from. This program is written for UNIX computers. I've been looking at opendir() and telldir() , but telldir() returns a off_t (long int) , so it really doesn't help me.
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How to open, read, and write from serial port in C?
I am a little bit confused about reading and writing to a serial port. I have a USB device in Linux that uses the FTDI USB serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
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Get an object properties list in Objective-C
How can I get a list (in the form of an NSArray or NSDictionary ) of a given object properties in Objective-C?
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What is a “callback” in C and how are they implemented?
From the reading that I have done, Core Audio relies heavily on callbacks (and C++, but that's another story).
9 Answers
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How to work with complex numbers in C?
How can I work with complex numbers in C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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How to make an OpenGL rendering context with transparent background?
Rendering contexts usually have a solid color on the background (black or whatever, see the image below):
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Get the current time in C
I want to get the current time of my system. For that I'm using the following code in C:
9 Answers
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Split string using a newline delimiter with Python
I need to delimit the string which has new line in it. How would I achieve it? Please refer below code.
5 Answers
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How do I convert a numpy array to (and display) an image?
I have created an array thusly:
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What is the proper #include for the function 'sleep()'?
I am using the Big Nerd Ranch book Objective-C Programming, and it starts out by having us write in C in the first few chapters. In one of my programs it has me create, I use the sleep function. In the book it told me to put #include <stdlib.h> under the #include <stdio.h> part. This...