An element defined as a block element in the HTML specification is not the same as a element defined as display: block; in CSS. With this I mean: Even if you say <p style=”display: inline;”>Lorem…</p>. The <p> will still be a block element in the eyes of HTML. HTML, CSS and JavaScript if used right … Read more
The answer to “Can a conversation from double to int be written in portable C” is clearly “yes“. For example, you could sprintf the floating value to a string, do string-based inspection (i.e. by string-based comparison to max and min values you also sprintf’d), validation, rounding, etc and then sscanf the known-valid string for the … Read more
TLDR It is a matter of debate among language lawyers as to whether programs using container_of are strictly conforming, but pragmatists using the container_of idiom are in good company and are unlikely to run into issues running programs compiled with mainstream tool chains on mainstream hardware. In other words: strictly conforming: debated conforming: yes, for … Read more
The function of the Normative References section of an ISO standard document is defined in ISO/IEC Directives, Part 2, 2011 §6.2.2: 6.2.2 Normative references This conditional element shall give a list of the referenced documents cited (see 6.6.7.5) in the document in such a way as to make them indispensable for the application of the … Read more
Yes, in C99, see §6.5.3.3/4: The result of the logical negation operator ! is 0 if the value of its operand compares unequal to 0, 1 if the value of its operand compares equal to 0. The result has type int. The expression !E is equivalent to (0==E). So !x and !!y can only yield … Read more
If they have strong connections, then I’d put them in an enum: public enum Error { ERROR_1(“-1”, “foo went wrong”), ERROR_2(“-2”, “bar went wrong”); private final String id; private final String message; Error(String id, String message) { this.id=id; this.message=message; } public String getId() { return id; } public String getMessage() { return message; } } … Read more
It’s fine in all current browsers. The only browser that got <script id> wrong was Netscape 4, which we stopped caring about a long, long time ago. That quirksmode page seems to be badly out of date, what with its use of language attributes, script <!– hiding, and application/x-javascript. Its advice about avoiding <script> in … Read more
The CSV “standard” (such as it is) does not dictate how comments should be handled, no, it’s up to the application to establish a convention and stick with it.
I just queried my database with millions of customers in the USA. The maximum first name length was 46. I go with 50. (Of course, only 500 of those were over 25, and they were all cases where data imports resulted in extra junk winding up in that field.) Last name was similar to first … Read more
The compiler is allowed to extend the language as long as the document the change which gcc does in their docs in section 6.21 Slightly Looser Rules for Escaped Newlines. Recently, the preprocessor has relaxed its treatment of escaped newlines. Previously, the newline had to immediately follow a backslash. The current implementation allows whitespace in … Read more