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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...ringbuf's public interface consists of public non-virtual functions in the base class which then dispatch to protected virtual function in the derived class.
– CB Bailey
Dec 3 '10 at 0:03
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How to create nonexistent subdirectories recursively using Bash?
I am creating a quick backup script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
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Determine path of the executing script
...rg.name, "", initial.options[grep(file.arg.name, initial.options)])
script.basename <- dirname(script.name)
other.name <- file.path(script.basename, "other.R")
print(paste("Sourcing",other.name,"from",script.name))
source(other.name)
other.R:
print("hello")
output:
burner@firefighter:~$ ...
How can I ignore everything under a folder in Mercurial
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Cordova 3.5.0 Install Error- Please Install Android Target 19
...em Image)
Google APIs (ARM System Image)
I could then create an emulator based on API19 using the Android Virtual Device (AVD) Manager that is included in the android SDK bundle.
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What is the proper way to use the node.js postgresql module?
..." way to get a client object for each request that I need to query the database.
7 Answers
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Best database field type for a URL
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You'll want to choose between a TEXT or VARCHAR column based on how often the URL will be used and whether you actually need the length to be unbound.
Use VARCHAR with maxlength >= 2,083 as micahwittman suggested if:
You'll use a lot of URLs per query (unlike TEXT columns, ...
How do I get the current date in JavaScript?
... This contains much more than just a simple format option. It extends the base Date object and includes methods such as addDays. For more information, please see the Git.
In this mod, the format characters are inspired by PHP: date. For a complete list, please see my README
This mod also has a m...
How do I import .sql files into SQLite 3?
... a sqlite prompt:
sqlite> .read db.sql
Or:
cat db.sql | sqlite3 database.db
Also, your SQL is invalid - you need ; on the end of your statements:
create table server(name varchar(50),ipaddress varchar(15),id init);
create table client(name varchar(50),ipaddress varchar(15),id init);
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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
...ction, while UnmodifiableMap may. From the JavaDoc:
An immutable, hash-based Map with reliable user-specified iteration order. Does not permit null keys or values.
Unlike Collections.unmodifiableMap(java.util.Map), which is a view of a separate map which can still change, an instance of Imm...