大约有 24,000 项符合查询结果（耗时：0.0439秒） [XML]
Why use deflate instead of gzip for text files served by Apache?
...====================+---+---+---+---+
|...compressed data...| ADLER32 |
+=====================+---+---+---+---+
So, a few headers and an ADLER32 checksum
RFC 2616 defines gzip as:
gzip An encoding format produced by the file compression program
"gzip" (GNU zip) as de...
Average of 3 long integers
...
I would suggest that a good way of dividing a 32-bit unsigned value by 3 is to multiply by 0x55555555L, add 0x55555555, and shift right by 32. Your divideby3 method, by comparison, looks as though it would require many discrete steps.
– supercat
...
Characters allowed in a URL
... 1*( unreserved / sub-delims / ":" )
IPv6address = 6( h16 ":" ) ls32
/ "::" 5( h16 ":" ) ls32
/ [ h16 ] "::" 4( h16 ":" ) ls32
/ [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
/ [ *2( h...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...cific intrinsics like ARM GCC's __clz (no header needed), or x86's _lzcnt_u32 on CPUs that support the lzcnt instruction. (Beware that lzcnt decodes as bsr on older CPUs instead of faulting, which gives 31-lzcnt for non-zero inputs.)
There's unfortunately no way to portably take advantage of the v...
Types in Objective-C on iOS
...onkey.org/programming_languages/objective-c/types.html
or run this code:
32 bit process:
NSLog(@"Primitive sizes:");
NSLog(@"The size of a char is: %d.", sizeof(char));
NSLog(@"The size of short is: %d.", sizeof(short));
NSLog(@"The size of int is: %d.", sizeof(int));
NSLog(@"The size o...
Why is there no std::stou?
...
– Lightness Races in Orbit
Jan 3 '12 at 17:32
4
@LightnessRacesinOrbit: For sto*, C++11 21.5/1: Effects:...
What does “Content-type: application/json; charset=utf-8” really mean?
...
32
According to the standard for json, you are not actually allowed to use latin1 for the encoding of the contents. JSON content must be enco...
How long is the SHA256 hash?
...
aexl
2,93211 gold badge3131 silver badges4949 bronze badges
answered Feb 10 '10 at 23:04
Pascal MARTINPascal ...
How to prevent errno 32 broken pipe?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
In-memory size of a Python structure
Is there a reference for the memory size of Python data stucture on 32- and 64-bit platforms?
7 Answers
...