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Convert a character digit to the corresponding integer in C
...r other replies, this is fine:
char c = '5';
int x = c - '0';
Also, for error checking, you may wish to check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
The standard guara...
How do you roll back (reset) a Git repository to a particular commit? [duplicate]
...t-id>, ( 2 back ) when doing "git push -f origin master" I get "remote: error: denying non-fast-forward refs/heads/master (you should pull first)" it is my repo and I want to take it back :)
– peterk
Mar 21 '12 at 19:25
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How do I remove the first characters of a specific column in a table?
...umn, LEN(MyColumn) - 4) WHERE LEN(MyColumn) > 4 The SUBSTRING wouldn't error out, but it would also unnecessarily "update" rows with fewer than four characters. That said, the OP indicated that they wanted to trim the first 4 characters of a specific column - I would assume unless provided with...
Strtotime() doesn't work with dd/mm/YYYY format
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We can implement that as they won't give error but when I checked $t and $t1 are showing different result. I checked like this. $t=strtotime(date('d-m-Y')); and $t1=strtotime(date('m/d/Y'));
– vusan
Oct 10 '12 at 9:03
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jQuery convert line breaks to br (nl2br equivalent)
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if you get the error "x.replace is not a function" then use x.toString().replace
– Vörös Amadea
Aug 15 '19 at 12:18
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Cartesian product of x and y array points into single array of 2D points
...rrays, name_func)
# `cartesian_product_recursive` throws an
# unexpected error when used on more than
# two input arrays, so for now I've removed
# it from these tests.
def test_cartesian(*in_arrays):
test(in_arrays, name_func[2:4] + name_func[-1:])
x10 = [numpy.arange(10)]
x50 = [numpy.aran...
How can I see the raw SQL queries Django is running?
...s especially useful when you have a query that's failing with a SQL syntax error; it will display the last query that attempted to run (and failed), making it easier to debug.
– scoopseven
Aug 16 '12 at 17:20
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Access object child properties using a dot notation string [duplicate]
...quite the same, but is probably a little more robust in that it will throw errors (whereas mine will just return undefined). It depends on your preference, I suppose. JSHint just complains about the assignment in the loop conditional, which can be disabled using the boss option.
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How to check type of files without extensions in python?
...= sub.Popen('file yourfile.txt', stdout=sub.PIPE, stderr=sub.PIPE)
output, errors = p.communicate()
print(output)
As Steven pointed out, subprocess is the way. You can get the command output by the way above as this post said
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Batch Renaming of Files in a Directory
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if you get no such file error just remember os.rename need full path
– Windsooon
Aug 23 '17 at 2:52
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