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What does the brk() system call do?
...x kernel v5.0 has a single system call brk that is used to implement both: https://github.com/torvalds/linux/blob/v5.0/arch/x86/entry/syscalls/syscall_64.tbl#L23
12 common brk __x64_sys_brk
Is brk POSIX?
brk used to be POSIX, but it was removed in POSIX 2001, thus the need for _GNU_SOU...
Build project into a JAR automatically in Eclipse
...n Peter's answer). However, unless your project is very small, it may slow down your workspace unacceptably. Autobuild for class files happens incrementally, i.e. only those classes affected by a change are recompiled, but the JAR file will have to be rebuilt and copied completely, every time you sa...
Input from the keyboard in command line application
...
I managed to figure it out without dropping down in to C:
My solution is as follows:
func input() -> String {
var keyboard = NSFileHandle.fileHandleWithStandardInput()
var inputData = keyboard.availableData
return NSString(data: inputData, encoding:NSU...
UnicodeDecodeError when redirecting to file
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Practical usage of setjmp and longjmp in C
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Error handling
Suppose there is an error deep down in a function nested in many other functions and error handling makes sense only in the top level function.
It would be very tedious and awkward if all the functions in between had to return normally and evaluate return...
Design by contract using assertions or exceptions? [closed]
...tell the programmer where the problem is, but so that the program can shut down and not risk bigger problems. The program should just do what it can to facilitate recovery later, when the data can be trusted.
– coppro
Oct 26 '09 at 0:09
...
Approximate cost to access various caches and main memory?
...l X48 / nForce 790i
| |||||||||||||||||| + 10-11 [usec] XFER-LATENCY-down DeviceToHost
| |||||||||||||||||| ~ 5.5 GB/sec XFER-BW-up ~~~ same as DDR2/DDR3 throughput
| |||||||||||||||||| ~ 5.2 GB/sec XFER-BW-down @8192 KB TEST-LOAD ( immune to attempts...
do { … } while (0) — what is it good for? [duplicate]
... available in C#, too, which doesn't have macros. I'm not sure why someone down-voted this reply but I see it as the almost-right answer, except it overlooked the explicit "0" in the while condition. Please, people, if you down-vote someone's reply please comment.
– Jon Davis
...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...2 is equivalent to E1 = (T)((E1) op (E2)), so that's kind of like implicit down typecasting (down from long to int). Whereas in i = i+j, we have to do it explicitly, ie, provide the (T) part in E1 = ((E1) op (E2)) Isn't it?
– bad_keypoints
Sep 22 '12 at 14:52
...
Is there any way to prevent input type=“number” getting negative values?
...:
It was only preventing negative numbers from being entered from
up/down arrows, whereas user can type negative number from keyboard.
Solution is to prevent with key code:
// Select your input element.
var number = document.getElementById('number');
// Listen for input event on num...