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What should main() return in C and C++?

...t is the correct (most efficient) way to define the main() function in C and C++ — int main() or void main() — and why? And how about the arguments? If int main() then return 1 or return 0 ? ...
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method overloading vs optional parameter in C# 4.0 [duplicate]

...DoFoo(c:"Hello There, John Doe") This call takes parameter a value as 10 and parameter b as 23. Another variant of this call - notice you don't need to set the parameter values in the order as they appear in the method signature, the named parameter makes the value explicit. DoFoo(c:"hello again...
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Printing Java Collections Nicely (toString Doesn't Return Pretty Output)

... You could convert it to an array and then print that out with Arrays.toString(Object[]): System.out.println(Arrays.toString(stack.toArray())); share ...
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Default value of function parameter

... If you put the declaration in a header file, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference. Specifically, suppose: lib.h int Add(int a, int b); lib.cpp int Add(int a, int b = ...
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Array Size (Length) in C#

...nt[,] b = new int[3, 5];) b.Rank will give the number of dimensions (2) and b.GetLength(dimensionIndex) will get the length of any given dimension (0-based indexing for the dimensions - so b.GetLength(0) is 3 and b.GetLength(1) is 5). See System.Array documentation for more info. As @Lucero ...
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unsigned int vs. size_t

I notice that modern C and C++ code seems to use size_t instead of int / unsigned int pretty much everywhere - from parameters for C string functions to the STL. I am curious as to the reason for this and the benefits it brings. ...
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Why can't I use a list as a dict key in python?

... Why not just convert the list to a tuple? Why convert it to a string? If you use a tuple, it'll work correctly with classes that have a custom comparison method __eq__. But if you convert them to strings, everything is compared by its str...
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Programmatically set left drawable in a TextView

... edited Sep 7 at 21:46 Andrew Orobator 5,50911 gold badge2424 silver badges3434 bronze badges answered Aug 3 '11 at 19:25 ...
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What are the differences between a multidimensional array and an array of arrays in C#?

What are the differences between multidimensional arrays double[,] and array-of-arrays double[][] in C#? 9 Answers ...
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?

...ype float are passed as variadic parameters, such arguments are implicitly converted to type double. This is the reason why in printf format specifiers %f and %lf are equivalent and interchangeable. In printf you can "cross-use" %lf with float or %f with double. But there's no reason to actually do...