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Hash Map in Python
...] * self.size
def _get_hash(self, key):
hash = 0
for char in str(key):
hash += ord(char)
return hash % self.size
def add(self, key, value):
key_hash = self._get_hash(key)
key_value = [key, value]
if self.map[key_hash] is None:
...
What is the simplest way to convert a Java string from all caps (words separated by underscores) to
...ache Commons lang library:
Specifically, the capitalizeFully(String str, char[] delimiters) method should do the job:
String blah = "LORD_OF_THE_RINGS";
assertEquals("LordOfTheRings", WordUtils.capitalizeFully(blah, new char[]{'_'}).replaceAll("_", ""));
Green bar!
...
Convenient C++ struct initialisation
...t;iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "world!"
};
std::cout << hw.hello << hw.world << std::endl;
return 0;
}...
Accessing inactive union member and undefined behavior?
...object representation of an object of type T is the sequence of N unsigned char objects taken up by
the object of type T, where N equals sizeof(T). The value representation of an object is the set of bits that
hold the value of type T. For trivially copyable types, the value representation is a ...
How to send SMS in Java
... public void sendMessage(String phoneNumber, String message) {
char quotes ='"';
send("AT+CMGS="+quotes + phoneNumber +quotes+ "\r\n");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTr...
How can I use map and receive an index as well in Scala?
... as follows:
import TraversableUtil._
List('a','b','c').map(doIndexed((i, char) => char + i))
which results in the list
List(97, 99, 101)
This way, you can use the usual Traversable-functions at the expense of wrapping your effective function. The overhead is the creation of the memoizing o...
What is the size of an enum in C?
...tum's answer, which references C99, says that an enum may be as small as a char.
– Frank Kusters
Sep 15 '17 at 6:46
...
do { … } while (0) — what is it good for? [duplicate]
...
@WChargin: the "goto fail" code in the article you linked too would have failed with a "break" too. Somebody just duplicated a line there. It wasn't goto's fault.
– Niccolo M.
Jun 15 '14 a...
Is 'switch' faster than 'if'?
...ecific questions:
Clang generates one that looks like this:
test_switch(char): # @test_switch(char)
movl %edi, %eax
cmpl $19, %edi
jbe .LBB0_1
retq
.LBB0_1:
jmpq *.LJTI0_0(,%rax,8)
jmp void call<0u>() ...
How to replace strings containing slashes with sed?
... search/replace lines, e.g.:
s:?page=one&:pageone:g
You can use any character as a delimiter that's not part of either string. Or, you could escape it with a backslash:
s/\//foo/
Which would replace / with foo. You'd want to use the escaped backslash in cases where you don't know what char...