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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...ly from gcc-4.6.4 -Os (executes in 0.709 secs):
00000000004004d2 <_ZL3addRKiS0_.isra.0>:
4004d2: 8d 04 37 lea eax,[rdi+rsi*1]
4004d5: c3 ret
00000000004004d6 <_ZL4workii>:
4004d6: 41 55 push r13
4004d8...
How using try catch for exception handling is best practice
..."custom message", innerException) to keep track of what really happened
Additionally, I try my best to sort exceptions correctly. There are exceptions which:
need to be shown to the user immediately
require some extra processing to put things together when they happen to avoid cascading problems...
In Java, what is the best way to determine the size of an object?
...ze(Object o) {
return instrumentation.getObjectSize(o);
}
}
Add the following to your MANIFEST.MF:
Premain-Class: ObjectSizeFetcher
Use getObjectSize:
public class C {
private int x;
private int y;
public static void main(String [] args) {
System.out.println(Ob...
How would Git handle a SHA-1 collision on a blob?
...backed up anywhere when G+ was shut down?
– Dan Is Fiddling By Firelight
Jan 7 at 16:12
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show 5 more comments
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Why does Java switch on contiguous ints appear to run faster with added cases?
... ; {section_word}
0x00000000024f01cb: add rsp,0x10
0x00000000024f01cf: pop rbp
0x00000000024f01d0: test DWORD PTR [rip+0xfffffffffdf3fe2a],eax # 0x0000000000430000
; {poll_return}
0x00000000024...
How to run a program without an operating system?
...ur binary code to a place where processor looks for after rebooting (e.g. address 0 on ARM).
Can you create assembly programs that the computer can load and run at startup ( e.g. boot the computer from a flash drive and it runs the program that is on the drive)?
General answer to the question:...
What characters can be used for up/down triangle (arrow without stem) for display in HTML?
...
Another note: To add these in CSS you just use the numeric part with a backslash in front, ie .example { content: "\25B2"; }
– Andrew
Dec 22 '11 at 18:21
...