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C# arrays

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Started by V-man May 03, 2009 02:28 PM

2 comments, last by rip-off 14 years, 11 months ago

V-man

813

Author

May 03, 2009 02:28 PM

I am tested out c#. It seems as if in comparison to C and C++, you can't declare an array on the stack like this int array[100]; I have to do this instead int[] array; array=new int[100]; Why does it require dynamic memory allocation? [Edited by - V-man on May 3, 2009 3:22:56 PM]

Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);

SiCrane

11,840

May 03, 2009 02:48 PM

Basically, because arrays are reference types, not value types.

dmatter

4,872

May 03, 2009 02:50 PM

In C# arrays are reference types, they inherit from the base class Array, and like all reference types they are allocated on the heap rather than the stack.

David Gill :: GitHub :: twitter .

rip-off

11,000

May 03, 2009 02:54 PM

Heap allocation doesn't have to be quite as bad in C# as C++ however. Modern managed languages can take advantage of a number of optimisations which can make dynamic allocation relatively cheap and garbage collection relatively quick for short lived objects.

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C# arrays

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