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How to write a large buffer into a binary file in C++, fast?
...year 2012):
#include <stdio.h>
const unsigned long long size = 8ULL*1024ULL*1024ULL;
unsigned long long a[size];
int main()
{
FILE* pFile;
pFile = fopen("file.binary", "wb");
for (unsigned long long j = 0; j < 1024; ++j){
//Some calculations to fill a[]
fwrite(...
How do I get bash completion to work with aliases?
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This worked for me on OS X 10.7.2 after changing the line let COMP_CWORD+=$num_alias_arguments to let \"COMP_CWORD+=$num_alias_arguments\".
– irh
Oct 31 '11 at 12:29
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Passing parameters to JavaScript files
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answered Feb 3 '10 at 9:33
Naeem SarfrazNaeem Sarfraz
6,66244 gold badges3232 silver badges6262 bronze badges
...
Difference between a theta join, equijoin and natural join
...aptop, CPU, 500
Laptop, hdd, 300
Laptop, case, 700
Car, wheels, 1000
The Cartesian product Product x Component will be - bellow or sql fiddle. You can see there are 12 rows = 3 x 4. Obviously, rows like "Laptop" with "wheels" have no meaning, this is why in practice the Cartesian produc...
What is the difference between g++ and gcc?
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10 Answers
10
Active
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Equation for testing if a point is inside a circle
...4
int dx = ABS(x-xo);
int dy = ABS(y-yo);
return FALSE;
}
#define N 1000000000
int main(){
int x, y;
xo = rand()%1000; yo = rand()%1000; R = 1;
int n = 0;
int c;
for (c=0; c<N; c++){
x = rand()%1000; y = rand()%1000;
// if ( inCircle(x,y) ){
if ( inCircleN(x,y) ){
//...
How do you sign a Certificate Signing Request with your Certification Authority?
..._default # The default ca section
[ CA_default ]
default_days = 1000 # How long to certify for
default_crl_days = 30 # How long before next CRL
default_md = sha256 # Use public key default MD
preserve = no # Keep passed DN ordering
x509_ext...
Add spaces before Capital Letters
...pend(text[i]);
}
return newText.ToString();
}
Will do it 100,000 times in 2,968,750 ticks, the regex will take 25,000,000 ticks (and thats with the regex compiled).
It's better, for a given value of better (i.e. faster) however it's more code to maintain. "Better" is often comprom...
Django - filtering on foreign key properties
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edited Oct 4 '16 at 13:10
tavo
44022 silver badges99 bronze badges
answered Dec 30 '09 at 18:07
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How do I create a copy of an object in PHP?
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106
The answers are commonly found in Java books.
cloning:
If you don't override clone method, t...