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What's the best way to check if a file exists in C?
...place your function with
if( access( fname, F_OK ) != -1 ) {
// file exists
} else {
// file doesn't exist
}
You can also use R_OK, W_OK, and X_OK in place of F_OK to check for read permission, write permission, and execute permission (respectively) rather than existence, and you can OR a...
How do I get the directory that a program is running from?
...
Here's code to get the full path to the executing app:
Windows:
int bytes = GetModuleFileName(NULL, pBuf, len);
return bytes ? bytes : -1;
Linux:
int bytes = MIN(readlink("/proc/self/exe", pBuf, len), len - 1);
if(bytes >= 0)
pBuf[bytes] = '\0';
return b...
SQLAlchemy IN clause
...s.id.in_((123,456))).all()
edit: Without the ORM, it would be
session.execute(
select(
[MyUserTable.c.id, MyUserTable.c.name],
MyUserTable.c.id.in_((123, 456))
)
).fetchall()
select() takes two parameters, the first one is a list of fields to retrieve, the second one i...
C# - Selectively suppress custom Obsolete warnings
...System;
class Test
{
[Obsolete("Message")]
static void Foo(string x)
{
}
static void Main(string[] args)
{
#pragma warning disable 0618
// This one is okay
Foo("Good");
#pragma warning restore 0618
// This call is bad
Foo("Bad");
}
}
R...
How do ports work with IPv6?
...uad notation separates the address from the port with a colon, as in this example of a webserver on the loopback interface:
...
Difference between ApiController and Controller in ASP.NET MVC
...they return data.
ApiControllers are specialized in returning data. For example, they take care of transparently serializing the data into the format requested by the client. Also, they follow a different routing scheme by default (as in: mapping URLs to actions), providing a REST-ful API by conve...
Binding ConverterParameter
...bject parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
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Best way to compare 2 XML documents in Java
...f an application that basically translates a custom message format into an XML message and sends it out the other end. I've got a good set of input/output message pairs so all I need to do is send the input messages in and listen for the XML message to come out the other end.
...
Is memcached a dinosaur in comparison to Redis? [closed]
...
Memcache is an excellent tool still and VERY reliable.
instead of looking at this issue from the perspective getting down the who is faster at the < 100 ms range, look at the performance per "class" of the software.
Does it use only lo...
How do I set the default font size in Vim?
...does this work on vim on terminal (ie. not gvim)?
– 0xc0de
May 15 '17 at 7:12
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