The most common reason for this is that you have two versions of Python 2.x, and the pip that comes first in your PATH doesn’t go with the python that comes first in your PATH. There are two ways that can happen. First, you may have, e.g., /usr/local/bin before /usr/bin on your PATH, but your /usr/local copy of Python doesn’t have pip. So, when you run pip install requests, that’s /usr/bin/pip, which … Read more
lvalue means “left value” — it should be assignable. You cannot change the value of text since it is an array, not a pointer. Either declare it as char pointer (in this case it’s better to declare it as const char*): Or use strcpy:
When do they fire? window.onload By default, it is fired when the entire page loads, including its content (images, CSS, scripts, etc.). In some browsers it now takes over the role of document.onload and fires when the DOM is ready as well. document.onload It is called when the DOM is ready which can be prior to images and other external content … Read more
A hash is an fixed sized integer that identifies a particular value. Each value needs to have its own hash, so for the same value you will get the same hash even if it’s not the same object. Hash values need to be created in such a way that the resulting values are evenly distributed … Read more
will match a single character that is NOT a digit or whitespace. will match a single character that IS a non-digit or non-whitespace. Since every character is either not a digit or not whitespace, the second regex will match any character. It’s equivalent to the difference between: and Note that the following would be equivalent … Read more
First of all, remember to indent your code for readability. Concept 1. Concept 2. // compare Strings using compareTo method (which returns 0 if equal Rest of your code and concepts are correct 🙂
Shallow copies duplicate as little as possible. A shallow copy of a collection is a copy of the collection structure, not the elements. With a shallow copy, two collections now share the individual elements. Deep copies duplicate everything. A deep copy of a collection is two collections with all of the elements in the original … Read more
np.log is ln, whereas np.log10 is your standard base 10 log. Relevant documentation: http://docs.scipy.org/doc/numpy/reference/generated/numpy.log.html http://docs.scipy.org/doc/numpy/reference/generated/numpy.log10.html
Straightforward way: Safer way: Generic way: Handy way: C++ way: (taken from Dave18 answer) Boss way: Joe, write me an int to char converter Studboss way: char aChar = ‘6’; Joe’s way: char aChar = ‘6’; //int i = 6; Nasa’s way: //Waiting for reply from satellite… Alien’s way: ‘9’ //Greetings. God’s way: Bruh I built … Read more
Possible Duplicate:What does the \0 symbol mean in a C string? I am new at iPhone Development. I want to know, what does ‘\0’ means in C, and what is the equivalent for that in objective c.