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How to make MySQL handle UTF-8 properly
...til just recently), and not complete (does not discuss correctly inserting/selecting utf8-encoded data, nor displaying in html).
– Rick James
Jan 20 '16 at 3:28
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Django Server Error: port is already in use
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ps aux | grep -i manage
after that you will see all process
ubuntu@ip-10-154-22-113:~/django-apps/projectname$ ps aux | grep -i manage
ubuntu 3439 0.0 2.3 40228 14064 pts/0 T 06:47 0:00 python manage.py runserver project name
ubuntu 3440 1.4 9.7 200996 59324 pts/0 Tl ...
std::string to char*
I want to convert a std::string into a char* or char[] data type.
18 Answers
18
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Convert int to char in java
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int a = 1;
char b = (char) a;
System.out.println(b);
will print out the char with ascii value 1 (start-of-heading char, which isn't printable).
int a = '1';
char b = (char) a;
System.out.println(b);
will print out the char with asc...
What is a “thread” (really)?
... the Instruction Pointer. For most instructions, this simply advances the IP by the size of the instruction, but control flow instructions change the IP in other, predictable ways. The sequence of values the IP takes on forms a path of execution weaving through the program code, giving rise to the...
How to copy a collection from one database to another in MongoDB
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The best way is to do a mongodump then mongorestore. You can select the collection via:
mongodump -d some_database -c some_collection
[Optionally, zip the dump (zip some_database.zip some_database/* -r) and scp it elsewhere]
Then restore it:
mongorestore -d some_other_db -c some_or_ot...
How to capitalize the first character of each word in a string
Is there a function built into Java that capitalizes the first character of each word in a String, and does not affect the others?
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Removing a list of characters in string
I want to remove characters in a string in python:
18 Answers
18
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What is the usefulness of `enable_shared_from_this`?
...p == q);
assert(!(p < q || q < p)); // p and q must share ownership
}
The method f() returns a valid shared_ptr, even though it had no member instance. Note that you cannot simply do this:
class Y: public enable_shared_from_this<Y>
{
public:
shared_ptr<Y> f()
{
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Where are my postgres *.conf files?
...alives_idle = 0 # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0 # TCP_KEEPCNT;
# 0 selects the...