大约有 2,317 项符合查询结果（耗时：0.0286秒） [XML]
Stack smashing detected
... mov %rax,%rdi
4005b6: e8 8b ff ff ff callq 400546 <myfunc>
return 0;
4005bb: b8 00 00 00 00 mov $0x0,%eax
}
# Check that the canary at -0x8(%rbp) hasn't changed after calling myfunc.
# If it has, jump to the failure point __sta...
What is the “FS”/“GS” register intended for?
...nd GS for efficient access of thread_local data is a happy unintended consequence of an historical error.
– Richard Hodges
Jan 4 '18 at 12:41
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What is the difference between server side cookie and client side cookie?
...n on the browser.
Say you have a website (example.com), when the browser requests a webpage the website can send cookies to store information on the browser.
Browser request example:
GET /index.html HTTP/1.1
Host: www.example.com
Example answer from the server:
HTTP/1.1 200 OK
Content-type: tex...
Fastest hash for non-cryptographic uses?
...
Wow, only required datatype is an unsigned integer, this will be SIGNIFICANLY faster than other hashing.
– John
Sep 8 '10 at 7:31
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When should I use OWIN Katana?
...ly don't get why I should use OWIN, while I can use IIS . To simplify, my question is: What do I lose if I skip learning OWIN and use IIS for my websites?
...
How does a public key verify a signature?
...is a hash (SHA1, MD5, etc.) of the data (file, message, etc.) that is subsequently encrypted with the signer's private key. Since that is something only the signer has (or should have) that is where the trust comes from. EVERYONE has (or should have) access to the signer's public key.
So, to v...
Timer function to provide time in nano seconds using C++
..._REALTIME, &ts); // Works on Linux
}
For windows you want to use the QueryPerformanceCounter. And here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a prob...
How do I get Windows to go as fast as Linux for compiling C++?
I know this is not so much a programming question but it is relevant.
13 Answers
13
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...
Yes, MD5 is somewhat less CPU-intensive. On my Intel x86 (Core2 Quad Q6600, 2.4 GHz, using one core), I get this in 32-bit mode:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in me...
Various ways to remove local Git changes
...de, later to return to your "messy desk". I don't see this applies to your question, but it's definitely handy.
To sum up
Generally, if you are confident you have committed and maybe pushed to a remote important changes, if you are just playing around or the like, using git reset --hard HEAD follo...