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Differences between C++ string == and compare()?
...or==
21.4.8.2 operator==
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT,traits,Allocator>& rhs) noexcept;
Returns: lhs.compare(rhs) == 0.
Seems like ...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... 00000013 080480f4 080480f4 000000f4 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
1 .note.ABI-tag 00000020 08048108 08048108 00000108 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
2 .hash 000000d4 08048128 08048128 00000128 2**2
...
How to track down a “double free or corruption” error
...
If you're using glibc, you can set the MALLOC_CHECK_ environment variable to 2, this will cause glibc to use an error tolerant version of malloc, which will cause your program to abort at the point where the double free is done.
You can set this from gdb by using ...
Why are regular expressions so controversial? [closed]
... # Match this...
<address>
# As defined by these...
<token: address> <mailbox> | <group>
<token: mailbox> <name_addr> | <addr_spec>
<token: name_addr> <display_name>? <angle_addr>
<token: an...
How long is the SHA256 hash?
...
varchar also doesn’t allocate space unless its used, unlike char it allocates the number of amount of total characters allowed regardless if there is data filling it.
– Xenland
Feb 11 '13 at 16:44
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Regular expression to match URLs in Java
...ly bug in Java 6 RegEx...
Simplest/Fastest solution would be to use StringTokenizer to split text into tokens, to remove tokens starting with "http://" etc., and to concatenate tokens into text again.
If you want to filter Emails from text (because later on you will do NLP staff etc) - just remove...
pinterest api documentation [closed]
...t of them are easy to guess). All of the above endpoints require an access_token parameter except for the login endpoint.
To generate a valid access_token, the developer will need to be granted access to the API by Pinterest which we all know is currently almost impossible.
Another option is to wr...
Best way to serialize an NSData into a hexadeximal string
... const unsigned char *dataBuffer = self.bytes;
char *chars = malloc(sizeof(char) * (bytesCount * 2 + 1));
if (chars == NULL) {
// malloc returns null if attempting to allocate more memory than the system can provide. Thanks Cœur
[NSException raise...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...ce, which is an object's reference to itself (i.e. reference to the actual allocated memory for storing the object's data). It happens to any allocated memory for which the Garbage Collector (GC) is unable to free up after the allocated memory has outlived its useful lifespan.
Most of the time, whe...
How to unescape HTML character entities in Java?
...rformance. Turns out, it does a lot of unnecessary operations. For one, it allocates a StringWriter for every call, even if there's nothing to unescape in the string. I've rewritten that code differently, now it works much faster. Whoever finds this in google is welcome to use it.
Following code u...