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Trim spaces from start and end of string
...am trying to find a way to trim spaces from the start and end of the title string. I was using this, but it doesn't seem to be working:
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
...your first example was valid, but used a deprecated implicit conversion--a string literal should be treated as being of type char const *, since you can't modify its contents (without causing undefined behavior).
As of C++11, the implicit conversion that had been deprecated was officially removed, ...
How do SO_REUSEADDR and SO_REUSEPORT differ?
...sts for the source address, which can be "any address" (0.0.0.0 in case of IPv4 and :: in case of IPv6). Unlike in case of ports, a socket can really be bound to "any address" which means "all source IP addresses of all local interfaces". If the socket is connected later on, the system has to choose...
Pointer expressions: *ptr++, *++ptr and ++*ptr
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The statement also initializes p to point to the first character in the string literal "Hello". For the sake of this exercise, it's important to understand p as pointing not to the entire string, but only to the first character, 'H'. After all, p is a pointer to one char, not to the entire string...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...-get install nmap
Edit Wired connection on your laptop (Ubuntu)
Change IpV4 settings to "Share to other computers"
Save the setting
Reboot your laptop
Share WiFi connection of your laptop via Ethernet crossover cable
Hook up your RPi with your laptop using the Ethernet cable
Look up the br...
Replacing instances of a character in a string
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Strings in python are immutable, so you cannot treat them as a list and assign to indices.
Use .replace() instead:
line = line.replace(';', ':')
If you need to replace only certain semicolons, you'll need to be more speci...
Pretty-print C++ STL containers
... that match those criteria but aren't actually containers, like std::basic_string. Also like Marcelo's version, it uses templates that can be specialized to specify the delimiters to use.
The major difference is that I've built my version around a pretty_ostream_iterator, which works similar to the...
Efficiently test if a port is open on Linux?
From a bash script how can I quickly find out whether a port 445 is open/listening on a server.
14 Answers
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Sanitizing strings to make them URL and filename safe?
...ying to come up with a function that does a good job of sanitizing certain strings so that they are safe to use in the URL (like a post slug) and also safe to use as file names. For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name.
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How to convert byte array to string [duplicate]
I created a byte array with two strings. How do I convert a byte array to string?
4 Answers
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