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Case insensitive regular expression without re.compile?
In Python, I can compile a regular expression to be case-insensitive using re.compile :
9 Answers
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How do I change the title of the “back” button on a Navigation Bar
Currently the left bar button default value is the title of the view that loaded the current one, in other words the view to be shown when the button is pressed (back button).
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What is the difference between square brackets and parentheses in a regex?
...:
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]\d{9}$/
The explanation:
(a|b|c) is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you would code (?:7|8|9) to make it a non capturing group.
[abc] is a...
Where is shared_ptr?
I am so frustrated right now after several hours trying to find where shared_ptr is located. None of the examples I see show complete code to include the headers for shared_ptr (and working). Simply stating std , tr1 and <memory> is not helping at all! I have downloaded boosts and all b...
How to replace list item in best way
I have replaced like above. Is there any other bestway to place compare than this one?
11 Answers
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Assigning a variable NaN in python without numpy
Most languages have a NaN constant you can use to assign a variable the value NaN. Can python do this without using numpy?
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Convert a character digit to the corresponding integer in C
...sh to check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
The standard guarantees that the char values for the digits '0' to '9' are contiguous, but makes no guarantees for othe...
C++ SFINAE examples?
I want to get into more template meta-programming. I know that SFINAE stands for "substitution failure is not an error." But can someone show me a good use for SFINAE?
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Why does Lua have no “continue” statement?
I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those:
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Is effective C++ still effective?
From what I saw in this post I decided to start reading the book Effective C++ .
3 Answers
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