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Difference between passing array and array pointer into function in C
... undefined.
Given the following code:
int main(void)
{
int arr[10];
foo(arr);
...
}
In the call to foo, the array expression arr isn't an operand of either sizeof or &, so its type is implicitly converted from "10-element array of int" to "pointer to int" according to 6.2.3.1/3. Thus,...
Count the number of occurrences of a character in a string in Javascript
...e results. The specifics of the results will be given later.
1.
("this is foo bar".match(/o/g)||[]).length
//>2
2.
"this is foo bar".split("o").length-1
//>2
split not recommended. Resource hungry. Allocates new instances of 'Array' for each match. Don't try that for a >100MB file via ...
Any way to declare a size/partial border to a box?
...
h1 {
border-bottom: 1px solid #f00;
display: table;
}
<h1>Foo is not equal to bar</h1>
Centering, display:table makes it impossible to center the element with text-align:center.
Let's work around with margin:auto...
h1 {
border-bottom: 1px solid #f00;
display...
Databinding an enum property to a ComboBox in WPF
...packed to KeyValuePair and stored in dictionary.
XAML
<ComboBox Name="fooBarComboBox"
ItemsSource="{Binding Path=ExampleEnumsWithCaptions}"
DisplayMemberPath="Value"
SelectedValuePath="Key"
SelectedValue="{Binding Path=ExampleProperty, Mode=TwoWay}" &g...
How to tell if a string contains a certain character in JavaScript?
...
With ES6 MDN docs .includes()
"FooBar".includes("oo"); // true
"FooBar".includes("foo"); // false
"FooBar".includes("oo", 2); // false
E: Not suported by IE - instead you can use the Tilde opperator ~ (Bitwise NOT) with .indexOf()
~"FooBar".indexOf("oo...
Why does @foo.setter in Python not work for me?
So, I'm playing with decorators in Python 2.6, and I'm having some trouble getting them to work. Here is my class file:
4 A...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
... file.
To isolate the error, look in logcat (when you do the 'adb install foo.apk' command). In the problem I encountered, logcat contained:
W/ActivityManager( 360): No content provider found for permission revoke: file:///data/local/tmp/foo.apk
D/Finsky (32707): [1] PackageVerificationReceiver...
Python: Best way to add to sys.path relative to the current running script
...─ bar
│ ├── __init__.py
│ └── mod.py
└── foo
├── __init__.py
└── main.py
$ cat foo/main.py
from bar.mod import print1
print1()
$ cat bar/mod.py
def print1():
print('In bar/mod.py')
$ python foo/main.py # This gives an error
Traceback (most ...
How to convert JSON string to array
..._decode, it will fail. Valid JSON strings have quoted keys:
json_decode('{foo:"bar"}'); // this fails
json_decode('{"foo":"bar"}', true); // returns array("foo" => "bar")
json_decode('{"foo":"bar"}'); // returns an object, not an array.
...
Where to put include statements, header or source?
...l method is to put "include guards" in header files, such as this for file foo.h:
#ifndef INCLUDE_FOO_H
#define INCLUDE_FOO_H
/* everything in header goes here */
#endif
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