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In what cases do I use malloc and/or new?
...need a big chunk of data just do something like:
char *pBuffer = new char[1024];
Be careful though this is not correct:
//This is incorrect - may delete only one element, may corrupt the heap, or worse...
delete pBuffer;
Instead you should do this when deleting an array of data:
//This delete...
How to get filename without extension from file path in Ruby
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Jonathan LonowskiJonathan Lonowski
108k3131 gold badges188188 silver badges191191 bronze badges
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Relative paths in Python
... so, that doesn't appear to be the case on my system (python 2.5.1 on OS X 10.5.7):
#foo.py
import os
print os.getcwd()
print __file__
#in the interactive interpreter
>>> import foo
/Users/jason
foo.py
#and finally, at the shell:
~ % python foo.py
/Users/jason
foo.py
However, I do know...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
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answered Apr 20 '10 at 13:25
djdolberdjdolber
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convert a char* to std::string
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Serid
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answered Jul 28 '09 at 17:57
Jesse BederJesse Beder
28.7k18...
Difference between session affinity and sticky session?
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kemiller2002kemiller2002
105k2525 gold badges186186 silver badges242242 bronze badges
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Can jQuery provide the tag name?
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110
$(this).attr("id", "rnd" + $(this).attr("tag") + "_" + i.toString());
should be
$(this).attr...
How many threads is too many?
...t guess. One suggestion is to make it configurable and initially set it to 100, then release your software to the wild and monitor what happens.
If your thread usage peaks at 3, then 100 is too much. If it remains at 100 for most of the day, bump it up to 200 and see what happens.
You could actual...
What is “2's Complement”?
...of 4 bits (we'll call it a nibble - 1/2 a byte).
0000 - zero
0001 - one
0010 - two
0011 - three
0100 to 0111 - four to seven
That's as far as we can go in positives. 23-1 = 7.
For negatives:
1111 - negative one
1110 - negative two
1101 - negative three
1100 to 1000 - negative four to negative eig...
MySQL Query to select data from last week?
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piotrmpiotrm
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