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Difference between fprintf, printf and sprintf?
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You can also do very useful things with vsnprintf() function:
$ cat test.cc
#include <exception>
#include <stdarg.h>
#include <stdio.h>
struct exception_fmt : std::exception
{
exception_fmt(char const* fmt, ...) __attribute__ ((format(printf,2,3)));
char const* what...
How to read a single char from the console in Java (as the user types it)?
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How heavily has this been tested/stress-tested?
– Fund Monica's Lawsuit
May 15 '16 at 5:01
2
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NSString: isEqual vs. isEqualToString
...objects, and that the objects at a given index return YES for the isEqual: test.
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
...good job for lenses:
data Foo = Foo { a :: Int, b :: Int , c :: String }
test = Foo 1 2 "Hello"
Then:
setL c "Goodbye" test
would update field 'c' of 'test' to your string.
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Swapping two variable value without using third variable
...rent
*x ^= *y;
*y ^= *x;
*x ^= *y;
}
}
Why the test?
The test is to ensure that x and y have different memory locations (rather than different values). This is because (p xor p) = 0 and if both x and y share the same memory location, when one is set to 0, both are set ...
How can I search sub-folders using glob.glob module?
...ase the fnmatch.filter() may be overkill, you could also use a .endswith() test:
import os
path = 'C:/Users/sam/Desktop/file1'
configfiles = [os.path.join(dirpath, f)
for dirpath, dirnames, files in os.walk(path)
for f in files if f.endswith('.txt')]
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Maven2 property that indicates the parent directory
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Don't put "test" for the phase. Caused me a variety of problems. Works great as shown above.
– ElectronicBlacksmith
Jan 22 '18 at 17:44
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TextView.setTextSize behaves abnormally - How to set text size of textview dynamically for different
...swer, as also ran into a bit of confusion. You should be able to drop this test into any @RunWith(AndroidJUnit4.class) test you have in your project (you'll also need to add the dimens to your dimens.xml).
Note: All these tests pass
@Test public void testScaledFontSizes() {
if (Build.VERSION.SDK...
What's the fastest way to loop through an array in JavaScript?
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After performing this test with most modern browsers:
https://jsben.ch/wY5fo
Currently, the fastest form of loop (and in my opinion the most syntactically obvious).
A standard for-loop with length caching
var i = 0, len = myArray.length;
w...
Why is arr = [] faster than arr = new Array?
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Just made a test case. new Array(n) is faster in cases where you know the size of the array ahead of time jsperf.com/square-braces-vs-new-array
– Y. Yoshii
Dec 10 '19 at 3:59
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