大约有 30,000 项符合查询结果（耗时：0.0402秒） [XML]
Modulo operation with negative numbers
... an "int" in this case, rather than "unsigned" even when both operands are uint32_t or bigger.
– Frederick Nord
Sep 24 '16 at 14:56
...
What's the fastest algorithm for sorting a linked list?
...sed if space is not an issue.
For example, given a linked list containing uint_8, this code will sort it in O(N) time using a histogram sort:
#include <stdio.h>
#include <stdint.h>
#include <malloc.h>
typedef struct _list list_t;
struct _list {
uint8_t value;
list_t *ne...
Is there a printf converter to print in binary format?
... puts("");
}
Test:
int main(int argv, char* argc[])
{
int i = 23;
uint ui = UINT_MAX;
float f = 23.45f;
printBits(sizeof(i), &i);
printBits(sizeof(ui), &ui);
printBits(sizeof(f), &f);
return 0;
}
...
How do I print a double value with full precision using cout?
...rect value anyways. I think g++ supports this.)
union {
double d;
uint64_t u64;
} x;
x.d = 1.1;
std::cout << std::hex << x.u64;
This will give you the 100% accurate precision of the double... and be utterly unreadable because humans can't read IEEE double format ! Wikipedia ha...
How to get my IP address programmatically on iOS/macOS?
...g *address;
[searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop)
{
address = addresses[key];
if(address) *stop = YES;
} ];
return address ? address : @"0.0.0.0";
}
- (NSDictionary *)getIPAddresses
{
NSMutableDiction...
Java equivalent of unsigned long long?
...access to a 64 bit unsigned integer, via unsigned long long int , or via uint64_t . Now, in Java longs are 64 bits, I know. However, they are signed.
...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...almost all useful information. For instance, if I pass in an array of std::uint64_t, the compiler or library implementer may be able to take advantage of 64-bit alignment with std::copy, but it may be more difficult to do so with memcpy. Many implementations of algorithms like this work by first wor...
\d is less efficient than [0-9]
...ch characters using the following code:
var sb = new StringBuilder();
for(UInt16 i = 0; i < UInt16.MaxValue; i++)
{
string str = Convert.ToChar(i).ToString();
if (Regex.IsMatch(str, @"\d"))
sb.Append(str);
}
Console.WriteLine(sb.ToString());
Which generates:
0123456789٠١...
Find out what process registered a global hotkey? (Windows API)
...find the structure, but that's over my head...
BOOL FASTCALL
GetHotKey (UINT fsModifiers,
UINT vk,
struct _ETHREAD **Thread,
HWND *hWnd,
int *id)
{
PHOT_KEY_ITEM HotKeyItem;
LIST_FOR_EACH(HotKeyItem, &gHotkeyList, HOT_KEY_ITEM, ListEntry)
...
Find unique rows in numpy.array
...s in a full row. It´s similar two what you get if you have an array of np.uint8s and view it as np.uint16s, which combines every two columns into a single one, but more flexible.
– Jaime
Jun 7 '13 at 2:34
...