... In latin1 each character is exactly one byte long. In utf8 a character can consist of more than one byte. Consequently utf8 has more characters than latin1 (and the characters they do have in common aren't necessarily represented by the same byte/bytesequence)....

One of the things which I miss while writing programs in C is a dictionary data structure. What's the most convenient way to implement one in C? I am not looking for performance, but ease of coding it from scratch. I don't want it to be generic either -- something like string->int will do. But I do ...

... Just for clarification: a table can have at most one primary key. A primary key consists of one or more columns (from that table). If a primary key consists of two or more columns it is called a composite primary key. It is defined as follows: CREATE TABLE voting ( Quest...

...thing. Of course, the confusion stems partly from the fact that there is a one-to-one correspondence between USER and SCHEMA, and a user's schema shares its name. – Mahesh Apr 8 '17 at 13:03 ...

...her good examples: they use dynamic runtime loading to load and create components they don't know anything before the runtime. Actually, if you want to go further, have a look at Ted Neward paper Understanding Class.forName() that I was paraphrasing in the paragraph just above. EDIT (answering a q...

...nd width arguments). This is easy to see in the example, but of course if one mixes up the arguments at call, it may not be easy to debug: # misplaced height and width color_box(20, 30, color="green") Here, color is assigned 20, then args=[30] and color is again assigned "green". ...

I've done some reading about how to extend ActiveRecord:Base class so my models would have some special methods. What is the easy way to extend it (step by step tutorial)? ...

... tldr: flushdb clears one database and flushall clears all databases Clear CURRENT Delete default or currently selected database (usually `0) with redis-cli flushdb Clear SPECIFIC Delete specific redis database with (e.g. 8 as my target dat...

... @hadley Indeed, or for that matter any character vector with one or more NAs. (Though this is documented to be so). – Gavin Simpson Mar 19 '14 at 16:19 ...

... I would recommend to debug and find which constraint is "the one you don't want". Suppose you have following issue: Always the problem is how to find following Constraints and Views. There are two solutions how to do this: DEBUG VIEW HIERARCHY (Do not recommend this way) Since ...