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Arrays, heap and stack and value types
... edited Feb 20 at 3:58
41686d6564
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answered Jul 11 '09 at 14:35
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Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
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Binary data that is sent must be encoded first into a format such as base64 encoded.
Has several protocols and technologies relating to it: WSDL, XSDs, SOAP, WS-Addressing
Representational state transfer (REST):
REST need not be over HTTP but most of my points below will have an HTTP bias.
RES...
Exploitable PHP functions
... to hide remote code with workarounds like:
include("data:text/plain;base64,$_GET[code]");
Also, if your webserver has already been compromised you will not always see unencoded evil. Often the exploit shell is gzip-encoded. Think of include("zlib:script2.png.gz"); No eval here, still same effec...
How many threads is too many?
... Note that these virtual memory limits only apply to 32-bit systems. On 64 bits you won't run out of virtual memory.
– JanKanis
Aug 1 at 7:43
add a comment
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Is it safe to parse a /proc/ file?
...l-space buffer during a single read.
I tested that with a program using a 64K read buffer but it results in a kernel space buffer of 3072 bytes in my system for proc_read to return data. Multiple calls with advancing pointers are needed to get more than that much text returned. I don't know what ...
multiprocessing.Pool: When to use apply, apply_async or map?
..._callback()
may yield a result such as
[1, 0, 4, 9, 25, 16, 49, 36, 81, 64]
Notice, unlike pool.map, the order of the results may not correspond to the order in which the pool.apply_async calls were made.
So, if you need to run a function in a separate process, but want the current process t...
What are copy elision and return value optimization?
...tructors to see the diff). godbolt.org/g/Y2KcdH
– Gab是好人
Dec 3 '16 at 16:18
Isn't ABC xyz = "Stack Overflow"; ju...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...dist( X, Y, **kwargs )
d = np.empty( (X.shape[0], Y.shape[0]), np.float64 )
if sxy == 2:
for j, x in enumerate(X):
d[j] = cdist( x.todense(), Y, **kwargs ) [0]
elif sxy == 1:
for k, y in enumerate(Y):
d[:,k] = cdist( X, y.todense(), **kwargs ) [0]
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How do malloc() and free() work?
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64
Soooo many people don't realise that free() may not return memory to the OS, it's infuriating. Thanks for helping enlighten them.
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What does O(log n) mean exactly?
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648
O(log N) basically means time goes up linearly while the n goes up exponentially. So if it tak...