Checking if two statements can be reached in one control flow

Assume I have a graph representing the control flow and the call graph of a given program. I also have a first and a second statement. I now want to figure out if it is possible to execute both statements (in order) within the same program execution.

Control Flow Graph: I have a graph with all the statements of the program and edges connecting the statements determining the control flow of the program intra function (i.e., within a function).

Call Graph: I also have edges connecting any function call with the start of the function control flow of the called function.

The literature I found concerning control flow covers only intra function flow analysis and the only correct approach I can come up with is a depth first (or breadth first) search starting from the first statement. This, however, hardly feels correct as it is quite cumbersome and I would expect a better solution.

Is the Planeshifter’s “portal under their control” a fixed location or no?

About the portal, the prestige class demiplane seed ability (Manual of the Planes, p32) only says, “It has a single portal entry, which the planeshifter may control for access.”

What rules would be used to define the portal, and would it have to be fixed or can it be portable by whatever rules apply?

understanding tcp confestion control

I am trying to understand calculations revolving around SMSS, cwnd, and IW.

I had to evaluate the results of slow-start on a line with a round trip time of 10msec and no congestion and conclude how long it takes before the first full window can be sent? I had the following info:

Initial Window = 4380 bytes  Receive window = 24 KB  Maximum segment size (SMSS) = 2 KB = 2048 bytes  

The results in the answer suggested the following:

Step 1: cwnd = 4380 bytes (2 segments sent/ack)

Step 2: cwnd = 8476 bytes (4 segments sent/ack)

Step 3: cwnd = 16668 bytes (8 segments sent/ack)

Step 4: cwnd = 33052 bytes (12 segments sent/ack)

In conclusion, it takes 3 round-trip times (i.e 30 ms) until the full receive window of 24 K can be used.

Now I know that during slow start, the congestion window is incrmented by SMSS bytes for each ack but I don’t quite understand how the results are derived. What formula is used to double the bytes every time and how can we conclude the number of segments?

[ Politics ] Open Question : How can Trump supporters attack China for downplaying the threat of the virus and claiming they had it under control but ignore the fact ?

Trump did the same thing? Feb. 23: “We have it very much under control in this country.” — Trump in speaking to reporters. Feb. 26: “And again, when you have 15 people, and the 15 within a couple of days is going to be down to close to zero, that’s a pretty good job we’ve done.” — Trump at a press conference. Feb. 26: “I think every aspect of our society should be prepared. I don’t think it’s going to come to that, especially with the fact that we’re going down, not up. We’re going very substantially down, not up.” — Trump at a press conference, when asked if “U.S. schools should be preparing for a coronavirus  March 9: “So last year 37,000 Americans died from the common Flu. It averages between 27,000 and 70,000 per year. Nothing is shut down, life & the economy go on. At this moment there are 546 confirmed cases of CoronaVirus, with 22 deaths. Think about that!” — Trump in a tweet.

Difference between data flow and control flow

I am trying to read a paper. I can’t understand the difference between data flow and control. Maybe control flow means OS’s or hardware’s steps taken for execution of statements whereas data flow stands for passage of data as a result of execution of statements. Link of paper is, named REPT: Reverse Debugging of Failures in Deployed Software

I have problem with following:

REPT reconstructs the execution history with high fidelity by combining online lightweight hardware tracing of a program’s control flow with offline binary analysis that recovers its data flow.

Kindly explain me the difference between dataflow and control flow.


replace control character ascii into page

I observe that a copy-paste containing the control character ‘^L’ (ie FF) causes an error with ‘vimrepress’.

WordPress publishes the page but vimpress cannot load it. I would like to replace this ‘^L’ character with a space in one and, if possible, several pages either with “adminer”, or with a plugin, or from the editor.

Any ideas ?

NB: WP 5.4.1; mysql 5.7.28; PHP 5.6.39

Is there some native way to control the “sentence start space” in CSS? [closed]

In plain text, it has long been a practice to do:

This is a sentence.  This is a new sentence.  This a third sentence. 

That is, double spaces for each new sentence, heavily improving readability.

In HTML, this is not (obviously) possible. If you try the same, it’s rendered as:

This is a sentence. This is a new sentence. This a third sentence. 

There are “insane hacks”, such as   , but that is both ugly and highly impractical.

One might also probably code something which automates this server-side, such as adding a <span class="new_sentence"> wherever there is a new sentence, and then style that class in CSS to have some right-margin, but that requires “processing” and again doesn’t seem elegant/right.

Is there really no CSS property called something like sentence-start-margin or something like that? I lost track of CSS features somewhere in 2005, so it’s been 15 years of me basically stumbling over random features in both modern HTML, JS and CSS, and for all I know, this could well exist. I hope it does. It’s frankly very strange if it doesn’t.

The single spaces everywhere make my eyes blur together the text and it makes it very hard for me to follow. I kept wishing that Silmarillion had used double spaces for new sentences as I was reading it.

How many undead of each type can you control at one time?

With a 20 wizard necromancer, all magic items allowed (with the exception of sentient items) with the three attuned as usual, by RAW:

How many undead can you maintain control over with a 100% success rate at the same time? I want to exclude Finger of Death, and undead created by your own undead — just direct ownership.

I’d like to know how many of each tier of undead I can control. So from highest power to lowest power undead, in terms of CR, how many of each can I control? For example: mummies before ghasts, before ghouls, before zombies, etc. Meaning, if you could control 2 mummies or 4 zombies, take the mummies first, then move down spell slots.

What is the name of this Ravenloft adventure where imprisoned PCs control NPCs in the past?

In this Ravenloft adventure, PCs suddenly find that they are now inhabiting the bodies of unknown characters at a ball held, as far as I remember, by Strahd von Zarovich at his castle.

How is this adventure called?

I remember the adventure being crudely formatted, so I’m not entirely sure it was an official one, but I’m writing anyway hoping that it was.