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Code Golf: Collatz Conjecture
...
x86 assembly, 1337 characters
;
; To assemble and link this program, just run:
;
; >> $ nasm -f elf collatz.asm && gcc -o collatz collatz.o
;
; You can then enjoy its output by passing a number to it on the command line:
;
; >...
What does the explicit keyword mean?
...s with default params can also act as single arg ctor, e.g., Object( const char* name=NULL, int otype=0).
– maccullt
Sep 24 '08 at 1:23
499
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Compile time string hashing
...7b82d07L,
...
};
template<size_t idx>
constexpr uint32_t crc32(const char * str)
{
return (crc32<idx-1>(str) >> 8) ^ crc_table[(crc32<idx-1>(str) ^ str[idx]) & 0x000000FF];
}
// This is the stop-recursion function
template<>
constexpr uint32_t crc32<size_t(-...
How do I extract text that lies between parentheses (round brackets)?
...
Honestly, this should've been selected as the answer.
– Pat Lindley
Jan 11 '13 at 18:58
1
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What is the strict aliasing rule?
...ict aliasing in your compiler (f[no-]strict-aliasing in gcc))
You can use char* for aliasing instead of your system's word. The rules allow an exception for char* (including signed char and unsigned char). It's always assumed that char* aliases other types. However this won't work the other way: th...
In Python, how do I create a string of n characters in one line of code?
I need to generate a string with n characters in Python. Is there a one line answer to achieve this with the existing Python library? For instance, I need a string of 10 letters:
...
Can I call a constructor from another constructor (do constructor chaining) in C++?
...).
The syntax is slightly different from C#:
class Foo {
public:
Foo(char x, int y) {}
Foo(int y) : Foo('a', y) {}
};
C++03: No
Unfortunately, there's no way to do this in C++03, but there are two ways of simulating this:
You can combine two (or more) constructors via default parameters...
Get Android Phone Model programmatically
...talize(String str) {
if (TextUtils.isEmpty(str)) {
return str;
}
char[] arr = str.toCharArray();
boolean capitalizeNext = true;
StringBuilder phrase = new StringBuilder();
for (char c : arr) {
if (capitalizeNext && Character.isLetter(c)) {
phrase.append(Character.t...
Error “initializer element is not constant” when trying to initialize variable with const
...s_pFooInit = (&(const foo_t){ .a=2, .b=4, .c=6 });
int main (int argc, char **argv) {
const foo_t *const f1 = &s_FooInit;
const foo_t *const f2 = s_pFooInit;
printf("Foo1 = %d, %d, %d\n", f1->a, f1->b, f1->c);
printf("Foo2 = %d, %d, %d\n", f2->a, f2->b, f2->...
OS detecting makefile
...detected_OS := $(patsubst MINGW%,MSYS,$(detected_OS))
endif
Then you can select the relevant stuff depending on detected_OS:
ifeq ($(detected_OS),Windows)
CFLAGS += -D WIN32
endif
ifeq ($(detected_OS),Darwin) # Mac OS X
CFLAGS += -D OSX
endif
ifeq ($(detected_OS),Linux)
CFLAGS ...