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How to convert a string to integer in C?
... const char **errstr);
EDIT
You might also be interested in strtoumax and strtoimax which are standard functions in C99. For example you could say:
uintmax_t num = strtoumax(s, NULL, 10);
if (num == UINTMAX_MAX && errno == ERANGE)
/* Could not convert. */
Anyway, stay away from a...
Is there a simple way to remove multiple spaces in a string?
...
This solution only handles single space characters. It wouldn't replace a tab or other whitespace characters handled by \s like in nsr81's solution.
– Taylor Leese
Oct 9 '09 at 22:21
...
How do I concatenate two strings in C?
...e that the function returns a block of heap allocated memory to the caller and passes on ownership of that memory. It is the responsibility of the caller to free the memory when it is no longer needed.
Call the function like this:
char* s = concat("derp", "herp");
// do things with s
free(s); // d...
Display two files side by side
...n use pr to do this, using the -m flag to merge the files, one per column, and -t to omit headers, eg.
pr -m -t one.txt two.txt
outputs:
apple The quick brown fox..
pear foo
longer line than the last two bar
last line ...
How can I get a file's size in C? [duplicate]
...
You need to seek to the end of the file and then ask for the position:
fseek(fp, 0L, SEEK_END);
sz = ftell(fp);
You can then seek back, e.g.:
fseek(fp, 0L, SEEK_SET);
or (if seeking to go to the beginning)
rewind(fp);
...
How do I lowercase a string in Python?
...y2casefold - several answers address this here.
Unicode Python 3
Python 3 handles plain string literals as unicode:
>>> string = 'Километр'
>>> string
'Километр'
>>> string.lower()
'километр'
Python 2, plain string literals are bytes
In Python 2, t...
Python - Check If Word Is In A String
I'm working with Python v2, and I'm trying to find out if you can tell if a word is in a string.
11 Answers
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How to change Git log date formats
...g "--pretty". log.date config variable
sets a default value for log command’s --date option.
--date=relative shows dates relative to the current time, e.g. "2 hours ago".
--date=local shows timestamps in user’s local timezone.
--date=iso (or --date=iso8601) shows timestamps in ISO 8601 for...
Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
...
Remove CSS class from element with JavaScript (no jQuery) [duplicate]
...cript only?
Please do not give me an answer with jQuery as I can't use it, and I don't know anything about it.
13 Answers
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