大约有 35,100 项符合查询结果（耗时：0.0340秒） [XML]
C++ performance challenge: integer to std::string conversion
Can anyone beat the performance of my integer to std::string code, linked below?
13 Answers
...
How can I multiply and divide using only bit shifting and adding?
... and shifting you want to decompose one of the numbers by powers of two, like so:
21 * 5 = 10101_2 * 101_2 (Initial step)
= 10101_2 * (1 * 2^2 + 0 * 2^1 + 1 * 2^0)
= 10101_2 * 2^2 + 10101_2 * 2^0
= 10101_2 << 2 + 10101_2 << 0 (Decomposed)
= 1...
how to mysqldump remote db from local machine
...remote server, but the server does not have mysqldump installed. I would like to use the mysqldump on my machine to connect to the remote database and do the dump on my machine.
...
How to debug PDO database queries?
...st echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code.
...
adb shell command to make Android package uninstall dialog appear
...ng this command:
adb shell am start -a android.intent.action.DELETE -d package:<your app package>
share
|
improve this answer
|
follow
|
...
Way to get all alphabetic chars in an array in PHP?
...
PEZPEZ
15.5k66 gold badges3636 silver badges6161 bronze badges
...
What is the argument for printf that formats a long?
The printf function takes an argument type, such as %d or %i for a signed int . However, I don't see anything for a long value.
...
Java: How to convert List to Map
...
List<Item> list;
Map<Key,Item> map = new HashMap<Key,Item>();
for (Item i : list) map.put(i.getKey(),i);
Assuming of course that each Item has a getKey() method that returns a key of the proper type.
...
printf format specifiers for uint32_t and size_t
...
Sounds like you're expecting size_t to be the same as unsigned long (possibly 64 bits) when it's actually an unsigned int (32 bits). Try using %zu in both cases.
I'm not entirely certain though.
...
Insert an element at a specific index in a list and return the updated list
...
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Feb 15 '13 at 13:23
Rushy PanchalRus...