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What is the best place for storing uploaded images, SQL database or disk file system? [closed]
...ntify each picture.
It also helps to strip the user's file name of any strange characters to avoid future complications.
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Convert a character digit to the corresponding integer in C
...like this:
int i = c - '0';
The C Standard guarantees each digit in the range '0'..'9' is one greater than its previous digit (in section 5.2.1/3 of the C99 draft). The same counts for C++.
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How many bytes does one Unicode character take?
...
Strangely enough, nobody pointed out how to calculate how many bytes is taking one Unicode char. Here is the rule for UTF-8 encoded strings:
Binary Hex Comments
0xxxxxxx 0x00..0x7F Only byte of a 1-byte characte...
What are bitwise operators?
...ctive.
bitwise shifting works only with +ve number
Also there is a wide range of use of bitwise logic
Difference between const & const volatile
...emp by means of a special function. Some processors have a special address range with OTP (one-time programmable) memory just for that.
But here comes the difference:
If const int temp is a modifiable ID instead of a one-time-programmable serial number and is NOT declared volatile, a cached value...
How to randomly select an item from a list?
...
If you also need the index, use random.randrange
from random import randrange
random_index = randrange(len(foo))
print(foo[random_index])
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ggplot with 2 y axes on each side and different scales
... 4 0.70
4 2018-03-24 3 0.75
5 2018-03-25 4 0.60
(the ranges of both columns differ by about factor 5).
The following code will draw both series that they use up the whole y axis:
ggplot() +
geom_bar(mapping = aes(x = dt$when, y = dt$numinter), stat = "identity", fill = "g...
PHP MySQL Google Chart JSON - Complete Example
...ize the table? where can I get info about this? because i have a long data range, the graph is very small and dense.
– Max
May 7 '18 at 8:08
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Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
...ency version conflicts with other packages, they need to specify as wide a range of dependency versions as can possibly work. This is what install_requires in setup.py does.
The deployment author writes for a very different, very specific goal: a single instance of an installed application or serv...
What character encoding should I use for a HTTP header?
...pret (like binary data). What happens with it depends on the header, might range from "nothing" to "discard".
– Kornel
Dec 10 '14 at 19:15
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