大约有 22,000 项符合查询结果（耗时：0.0179秒） [XML]
Why is a boolean 1 byte and not 1 bit of size?
...Obviously, such a pointer would not be convertible to void* because of the extra storage requirement for the bit number.
– Maxim Egorushkin
Jan 7 '11 at 17:10
...
How do I match any character across multiple lines in a regular expression?
... base R default engine with no perl=TRUE, for base R with perl=TRUE or for stringr/stringi patterns, use the (?s) inline modifier) (demo) also treat . the same way.
However, most POSIX based tools process input line by line. Hence, . does not match the line breaks just because they are not in sco...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...ou that a block of memory is a signed or unsigned integer or a double or a string or something else. The raw data is whatever type you choose to interpret it as.
– Welbog
Jul 2 '15 at 19:23
...
Calculate MD5 checksum for a file
...terested in comparing the hashes.)
If you need to represent the hash as a string, you could convert it to hex using BitConverter:
static string CalculateMD5(string filename)
{
using (var md5 = MD5.Create())
{
using (var stream = File.OpenRead(filename))
{
var ha...
Java executors: how to be notified, without blocking, when a task completes?
...blic class GetTaskNotificationWithoutBlocking {
public static void main(String... argv) throws Exception {
ExampleService svc = new ExampleService();
GetTaskNotificationWithoutBlocking listener = new GetTaskNotificationWithoutBlocking();
CompletableFuture<String> f = Completable...
How do I do a case-insensitive string comparison?
How can I do case insensitive string comparison in Python?
9 Answers
9
...
How to get the first five character of a String
I have read this question to get first char of the string. Is there a way to get the first n number of characters from a string in C#?
...
'const int' vs. 'int const' as function parameters in C++ and C
...id they are the same. And yet the accepted and top voted answers also give extra info on pointer types. Did you downvote those too?
– Nick Westgate
Apr 28 '16 at 19:01
add a c...
Useful GCC flags for C
... not occur. (The value 5 may be too strict, see the manual page.)
-Wwrite-strings: give string constants the type const char[length] so that copying the address of one into a non-const char * pointer will get a warning.
-Waggregate-return: warn if any functions that return structures or unions are ...
What is the difference between const int*, const int * const, and int const *?
... but not the value that you point to. Most often this is seen with C-style strings where you have a pointer to a const char. You may change which string you point to but you can't change the content of these strings. This is important when the string itself is in the data segment of a program and sh...