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What's the point of g++ -Wreorder?
...n the constructor, and think that they're executed in that order (j first, then i). They are not, they are executed in the order the members are defined in the class.
Suppose you wrote A(): j(0), i(j) {}. Somebody might read that, and think that i ends up with the value 0. It doesn't, because you i...
Can we have multiple in same ?
Can we have multiple <tbody> tags in same <table> ? If yes then in what scenarios should we use multiple <tbody> tags?
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Is there any use for unique_ptr with array?
...you have an iterator, a pointer, or a reference to an element of a vector. Then you increase the size or capacity of that vector such that it forces a reallocation. Then that iterator, pointer or reference no longer points to that element of the vector. This is what we mean by "invalidation". This p...
What are the differences between “generic” types in C++ and Java?
...rics and C++ provides a very strong programming model with template s.
So then, what is the difference between C++ and Java generics?
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Passing arguments forward to another javascript function
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@Brett - You can copy it into an array then manipulate that before passing it along, for example: var copy = [].slice.call(arguments); <remove what you want> myFunc.apply(this, copy);
– Nick Craver♦
Feb 17 '12 at 11:1...
Verify if a point is Land or Water in Google Maps
..and then Google-maps "divide the waters from the waters"
18 Answers
18
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how to permit an array with strong parameters
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if category_ids is not an array (e.g. a string was sent) then rails totally goes nuts and raises a ERROR TypeError: expected Array (got String) for param `category_ids' Is that a bug in rails? Edit: yes it is: github.com/rails/rails/issues/11502
– Dominik Golt...
How do I create a random alpha-numeric string in C++?
...ink the line s[len] = 0 is incorrect. If s is a C string (NULL terminated) then the signature of the method would not have to have the lenparameter in it. Imo, if you are passing the length as an argument, you are assuming the array is not a C string. Thus, if you are not passing a C string to the f...
SQL injection that gets around mysql_real_escape_string()
...sing a MySQL release since 2006.
If you're using an earlier MySQL release, then a bug in mysql_real_escape_string() meant that invalid multibyte characters such as those in our payload were treated as single bytes for escaping purposes even if the client had been correctly informed of the connection...
smart pointers (boost) explained
...rence counted so it can see when the last copy of it goes out of scope and then it frees the object managed.
weak_ptr is a non-owning smart pointer. It is used to reference a managed object (managed by a shared_ptr) without adding a reference count. Normally, you would need to get the raw pointer ...