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Signed to unsigned conversion in C - is it always safe?
...hort Answer
Your i will be converted to an unsigned integer by adding UINT_MAX + 1, then the addition will be carried out with the unsigned values, resulting in a large result (depending on the values of u and i).
Long Answer
According to the C99 Standard:
6.3.1.8 Usual arithmetic conversions...
What is the difference between `sorted(list)` vs `list.sort()`?
...ably faster as it is written in C:
def sorted(iterable, key=None):
new_list = list(iterable) # make a new list
new_list.sort(key=key) # sort it
return new_list # return it
when to use which?
Use list.sort when you do not wish to retain the original sort ord...
Difference between app.all('*') and app.use('/')
...r instance: header, cookies, sessions, etc.
must be written before app[http_method] otherwise there will be not executed.
several calls are processed in the order of writing
app.all:
(like app[http_method]) is used for configuring routes' controllers
"all" means it applies on all http methods.
s...
Is the size of C “int” 2 bytes or 4 bytes?
... size for the preproccesor, you can check the predefined macros such as INT_MAX. If the value is not the one expected by your code, then the byte size of int is different on the current compiler/platform combination.
– Walt Sellers
Apr 15 '14 at 17:10
...
Get MIME type from filename extension
...dd double checks and provide fail safe action for every step.
MimeMapping._mappingDictionary.AddMapping(string fileExtension, string mimeType)
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Generating an MD5 checksum of a file
...y and feed them to the md5 method:
import hashlib
def md5(fname):
hash_md5 = hashlib.md5()
with open(fname, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash_md5.update(chunk)
return hash_md5.hexdigest()
Note: hash_md5.hexdigest() will return the hex s...
CSV file written with Python has blank lines between each row
...his code reads thefile.csv , makes changes, and writes results to thefile_subset1 .
9 Answers
...
How to convert AAR to JAR
... When I run the jar xf, I get nothing: C:\Program Files\Java\jdk1.7.0_25\bin>jar xf c:\dev\1\android-maps-utils- 0.2.1.jar C:\Program Files\Java\jdk1.7.0_25\bin>
– Nestor
Jan 28 '14 at 22:56
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Split code over multiple lines in an R script
...two step solution.
1) Bring the text string in across multiple lines
long_string <- "this
is
a
long
string
with
whitespace"
2) R will introduce a bunch of \n characters. Strip those out with strwrap(), which destroys whitespace, per the documentation:
strwrap(long_string, width=10000, sim...
How do I declare a global variable in VBA?
... function:
Public iRaw As Integer
Public iColumn As Integer
Function find_results_idle()
iRaw = 1
iColumn = 1
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