大约有 5,229 项符合查询结果(耗时:0.0365秒) [XML]

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Compile time string hashing

..., 0xee0e612cL, 0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, ... }; template<size_t idx> constexpr uint32_t crc32(const char * str) { return (crc32<idx-1>(str) >&g...
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How efficient is locking an unlocked mutex? What is the cost of a mutex?

...is: This shows the result of benchmark runs on the following code: uint64_t do_Ndec(int thread, int loop_count) { uint64_t start; uint64_t end; int __d0; asm volatile ("rdtsc\n\tshl $32, %%rdx\n\tor %%rdx, %0" : "=a" (start) : : "%rdx"); mutex.lock(); mutex.unlock(); asm volatile ...
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How can I randomize the lines in a file using standard tools on Red Hat Linux?

... 64 And a Perl one-liner you get! perl -MList::Util -e 'print List::Util::shuffle <>' It u...
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What is the correct way to restore a deleted file from SVN?

...6:12 BCS 64.2k6161 gold badges175175 silver badges272272 bronze badges answered Jan 29 '09 at 5:01 Sean Bright...
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what is faster: in_array or isset? [closed]

... Jason McCrearyJason McCreary 64.4k2020 gold badges122122 silver badges166166 bronze badges ...
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How to get the system uptime in Windows? [closed]

...d -eq 6005 -or $_.Id -eq 6006} 6: Programmatically, by using GetTickCount64 GetTickCount64 retrieves the number of milliseconds that have elapsed since the system was started. 7: By using WMI wmic os get lastbootuptime 8: The new uptime.exe for Windows XP and up Like the tool from Micros...
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Missing Maven dependencies in Eclipse project

...My Project was just screwed up. Here is how I fixed it for Eclipse Indigo x64 (J2EE 3.7.3): Deleted my POM file (backedup of course). Project Context Menu > Maven > Disable Maven Nature. Deleted the project (but not contents on disk). Re-imported as Import > General > Existing Project....
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Test whether string is a valid integer

...he size of the integer is checked towards bash limits (on my computer it's 64bits). This limit does not hit the regexp solution. So you solution will fail on number strictly greater than 9223372036854775807 on 64bits computers. – vaab Nov 6 '15 at 2:52 ...
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How to read from standard input in the console?

... get this error bufio.Scanner: token too long If your input is bigger than 64 * 1024 bytes. Also don't forget add fmt.Println(scanner.Err())below the for loop. – Yuvaraj Loganathan Jul 28 '17 at 10:53 ...
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JavaScript curry: what are the practical applications?

... Hank GayHank Gay 64.2k2929 gold badges144144 silver badges216216 bronze badges ...