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How to get current path with query string using Capybara
..._uri is more succinct. See @Lasse Bunk's answer.
– Richard Jones
Nov 27 '13 at 1:16
As of Capybara 2.5, this is no lon...
Thread pooling in C++11
...or <ctpl_stl.h> if ou do not have Boost library
int main (int argc, char *argv[]) {
ctpl::thread_pool p(2 /* two threads in the pool */);
int arr[4] = {0};
std::vector<std::future<void>> results(4);
for (int i = 0; i < 8; ++i) { // for 8 iterations,
for ...
Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...d strings:
Spanned , SpannedString , Spannable , SpannableString and CharSequence .
2 Answers
...
C++ preprocessor __VA_ARGS__ number of arguments
...VA_ARGS__), __VA_ARGS__))
void sum(int numargs, ...);
int main(int argc, char *argv[]) {
SUM(1);
SUM(1, 2);
SUM(1, 2, 3);
SUM(1, 2, 3, 4);
return 1;
}
void sum(int numargs, ...) {
int total = 0;
va_list ap;
printf("sum() called with %d params:", numargs);
...
How to print binary tree diagram?
...line.size(); j++) {
// split node
char c = ' ';
if (j % 2 == 1) {
if (line.get(j - 1) != null) {
c = (line.get(j) != null) ? '┴' : '┘';
} else {
...
C++ templates that accept only certain types
...that the compiler allows these, and then declare a variable my_template<char> z; and verify that it doesn't.
– j_random_hacker
Nov 16 '17 at 16:20
...
Are there benefits of passing by pointer over passing by reference in C++?
...want to modify the parameter and the value is easy to copy (ints, doubles, char, bool, etc... simple types. std::string, std::vector, and all other STL containers are NOT simple types.)
Pass by const pointer when the value is expensive to copy AND the function does not want to modify the value poi...
How to play with Control.Monad.Writer in haskell?
...ype of logNumber is logNumber :: (Show a, Monad m) => a -> WriterT [[Char]] m a for me.
– kmikael
May 27 '15 at 20:15
...
Purpose of memory alignment
...y you have a struct in memory that looks like this:
struct mystruct {
char c; // one byte
int i; // four bytes
short s; // two bytes
}
On a 32-bit processor it would most likely be aligned like shown here:
The processor can read each of these members in one transaction.
Say you...
When do I use fabs and when is it sufficient to use std::abs?
...t, long, long long, std::intmax_t, float, double, long double. No short or char versions (or unsigned versions) that I can see.
– user673679
Mar 2 at 17:41
...