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What is the purpose of the “final” keyword in C++11 for functions?
... key disadvantage of vtables is that for any such virtual object (assuming 64-bits on a typical Intel CPU) the pointer alone eats up 25% (8 of 64 bytes) of a cache line. In the kind of applications I enjoy to write, this hurts very badly. (And from my experience it is the #1 argument against C++ fro...
Round a Floating Point Number Down to the Nearest Integer?
...s because 1.9999999999999999 is actually equal to 2.0 in the internal float64 representation. I. e. it's already rounded as soon as it is parsed into a float, as a 64 bit float cannot represent that many significant digits. You can verify that with evaluating 1.9999999999999999 == 2.0. And if you su...
Canvas width and height in HTML5
... zett42
10.5k33 gold badges1212 silver badges4646 bronze badges
answered Feb 8 '11 at 22:06
PhrogzPhrogz
261k9494 gold badge...
Where are static variables stored in C and C++?
...touched that, consider reading this post first.
Let's analyze a Linux x86-64 ELF example to see it ourselves:
#include <stdio.h>
int f() {
static int i = 1;
i++;
return i;
}
int main() {
printf("%d\n", f());
printf("%d\n", f());
return 0;
}
Compile with:
gcc -ggd...
(413) Request Entity Too Large | uploadReadAheadSize
...'ve written a WCF service with .NET 4.0, which is hosted on my Windows 7 x64 Ultimate system with IIS 7.5.
One of the service methods has an 'object' as argument and I'm trying to send a byte[] which contains a picture.
As long as the file size of this picture is less then approx. 48KB, all goes w...
USB Debugging option greyed out
...ebug when linked to the computer. Check it.
– DSlomer64
Jul 22 '16 at 12:25
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show 7 more comments
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Tool for comparing 2 binary files in Windows [closed]
...
mgutt
4,39922 gold badges4040 silver badges6464 bronze badges
answered Nov 17 '11 at 12:00
PolynomialPolynomial
24.7k66 g...
Spring Test & Security: How to mock authentication?
...xample for those who want to Test Spring MockMvc Security Config using Base64 basic authentication.
String basicDigestHeaderValue = "Basic " + new String(Base64.encodeBase64(("<username>:<password>").getBytes()));
this.mockMvc.perform(get("</get/url>").header("Authorization", basi...
Is System.nanoTime() completely useless?
...nt across all processors/cores? (Does arch matter? e.g. ppc, arm, x86, amd64, sparc).
It should or it's considered buggy.
However, on x86/x86_64, it is possible to see unsynced or variable freq TSCs cause time inconsistencies. 2.4 kernels really had no protection against this, and earl...
Print number of keys in Redis
...uild_id:b63575307aaffe0a
redis_mode:standalone
os:Linux 5.4.0-1017-aws x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:9.3.0
process_id:2854672
run_id:90a5246f10e0aeb6b02cc2765b485d841ffc924e
tcp_port:6379
uptime_in_seconds:2593097
uptime_in_days:30
hz:10
configur...