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What does enctype='multipart/form-data' mean?
...tipart/form-data; boundary=---------------------------735323031399963166993862150
Content-Length: 834
-----------------------------735323031399963166993862150
Content-Disposition: form-data; name="text1"
text default
-----------------------------735323031399963166993862150
Content-Disposition: for...
RSA Public Key format
...974621162169C71538A539372E27F3F51DF3B08B2E111C2D6BBF9F5887F13A8DB4F1EB6DFE386C92256875212DDD00468785C18A9C96A292B067DDC71DA0D564000B8BFD80FB14C1B56744A3B5C652E8CA0EF0B6FDA64ABA47E3A4E89423C0212C07E39A5703FD467540F874987B209513429A90B09B049703D54D9A1CFE3E207E0E69785969CA5BF547A36BA34D7C6AEFE79F314E07...
Which is faster: while(1) or while(2)?
... was asked in that specific context ("Which is faster using gcc 4.7.2 for x86_64 with default options?", for example).
As far as the language definition is concerned, in the abstract machine while (1) evaluates the integer constant 1, and while (2) evaluates the integer constant 2; in both cases th...
What is the difference between native code, machine code and assembly code?
...When loaded, MSIL is compiled by the JIT compiler into native code (Intel x86 or x64 machine code).
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How do you convert a byte array to a hexadecimal string, and vice versa?
..."7B", "7C", "7D", "7E", "7F",
"80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8A", "8B", "8C", "8D", "8E", "8F",
"90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9A", "9B", "9C", "9D", "9E", "9F",
"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "A8", ...
C++ unordered_map using a custom class type as the key
...ype cast' : cannot convert from 'const Key' to 'size_t' c:\program files (x86)\microsoft visual studio 10.0\vc\include\xfunctional. I am guessing that the compiler is not finding my hash method? Should I be adding anything to my Key.h file?
– Ben
Feb 7 '15 at...
How do I find where an exception was thrown in C++?
...;
// Get the address at the time the signal was raised from the EIP (x86)
void * caller_address = (void *) uc->uc_mcontext.eip;
std::cerr << "signal " << sig_num
<< " (" << strsignal(sig_num) << "), address is "
<<...
Quickly find whether a value is present in a C array?
...traints and requirements that what is "best practice" in, for example, an x86 execution environment is "taking the easy way out" in embedded.
– Olof Forshell
Jun 23 '15 at 12:22
...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
... A bus-locked test-and-set is a single (rather long) instruction on x86. The rest of the machinery to use it is pretty quick (“did the test succeed?” is a question that CPUs are good at doing fast) but it's the bus-locked instruction's length that really matters as it is the part that bloc...
Why were pandas merges in python faster than data.table merges in R in 2012?
... | 0.90 | 4.82 | 5 |
| q4 | 0.47 | 5.86 | 12 |
| q5 | 2.55 | 54.10 | 21 |
+-----------+--------------+----------+--------+
5 GB LHS data
+-----------+--------------+----------+--------+
| question | data.table | pandas | pd2...