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static function in C
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The static keyword in C is used in a compiled file (.c as opposed to .h) so that the function exists only in that file.
Normally, when you create a function, the compiler generates cruft the linker can use to, well, link a function call t...
E11000 duplicate key error index in mongodb mongoose
...e is saying that there's already a record with null as the email. In other words, you already have a user without an email address.
The relevant documentation for this:
If a document does not have a value for the indexed field in a unique index, the index will store a null value for this document. ...
count number of lines in terminal output
...t to another programm. E.g. you would even not changing characters in your Word document with another text editor than Word, would you?
– Michael P
May 15 at 7:22
add a commen...
How to read data when some numbers contain commas as thousand separator?
...ss “num.with.commas” Any idea what the issue is here, I have your code word for word?
– TheGoat
Sep 29 '16 at 22:18
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How to check if a string contains an element from a list in Python
...f it contains or not and is not useful when one wants to extract the exact word matching the extensions.
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C# DateTime.Now precision
...w if rounding to 1s doesn't solve anything then why round at all? In other words, I don't follow your argument for why the absolute values should have a smaller precision than the accuracy of delta time measurements.
– Roman Starkov
Feb 10 '11 at 22:23
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What is the difference between the kernel space and the user space?
...rwise, it could set itself to ring 0 and rings would be useless.
In other words, cannot modify the current segment descriptor, which determines the current ring.
cannot modify the page tables: How does x86 paging work?
In other words, cannot modify the CR3 register, and paging itself prevents modi...
iOS Detection of Screenshot?
...ering this notification follows conventional Cocoa naming conventions, the word "Did" implies that it is posted after the fact. There is no "Will" equivalent in this case, and AFAIK no way to prevent the user from taking a screenshot using public API.
– Mick MacCallum
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Using reCAPTCHA on localhost
...uction and to not allow localhost on your production site key."
In other words, simply use the same key.
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strdup() - what does it do in C?
...e, assuming you're used to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-)
Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effectively doing the same as the following code:
char *strdup(const char *src) {
char *...