Is it like php, where it returns its argument as the value of the function call? Is it just good practise? Yes, PHP and many other languages borrowed the return keyword from ‘C’. And in all the languages, the return keyword has the same function – to return from the function. Anything that follows return keyword is the value that is … Read more
Because that’s what the keyboard actually sends to the PC (more precisely, what the terminal prints for what it actually receives from the keyboard). bash for example gets those values, deciphers them and understands that you want to move around, so it will either move the cursor (in case of left/right) or use its history to fetch … Read more
Archive libraries (.a) are statically linked i.e when you compile your program with -c option in gcc. So, if there’s any change in library, you need to compile and build your code again. The advantage of .so (shared object) over .a library is that they are linked during the runtime i.e. after creation of your … Read more
On Linux systems and OS X, the character to input to cause an EOF is Ctrl–D. For Windows, it’s Ctrl–Z. Depending on the operating system, this character will only work if it’s the first character on a line, i.e. the first character after an Enter. Since console input is often line-oriented, the system may also not recognize the … Read more
Is there a way to download Awesomium latest sdk or for visual studio 2015 since their website is down? I need it for a project I found for visual basic which Awesomium core and some functions are required..
If you try this: Output is: So ‘name’ is actually a pointer to the array of characters in memory. If you try reading the first four bytes at 0xbff5391b, you will see ‘s’, ‘i’, ‘v’ and ‘a’ To print a character you need to pass the value of the character to printf. The value can … Read more
This declaration: would occupy 8 * 1000 * 1000000 bytes on a typical x86 system. This is about 7.45 GB. Chances are your system is running out of memory when trying to execute your code, which results in a segmentation fault.
It can take time for the network close to be observed – the total time is nominally about 2 minutes (yes, minutes!) after a close before the packets destined for the port are all assumed to be dead. The error condition is detected at some point. With a small write, you are inside the MTU … Read more
lvalue means “left value” — it should be assignable. You cannot change the value of text since it is an array, not a pointer. Either declare it as char pointer (in this case it’s better to declare it as const char*): Or use strcpy:
Function pointers in C Let’s start with a basic function which we will be pointing to: First thing, let’s define a pointer to a function which receives 2 ints and returns an int: Now we can safely point to our function: Now that we have a pointer to the function, let’s use it: Passing the … Read more