Hi all,
I would like your help
I am trying to declare a multidimensional arrays in the following way:
int PSF[57][57][65][65];
The full code has others variables.
I compile without problems, but when I run the program, appear a error:
Segmentation fault
I do not know what I am doing wrong ...
Someone know how solve this problem..???
Thanks
Manuel
The likely problem is that 57 * 57 * 65 * 65 * sizeof(int) is too much space to allocate on the stack. You can use a std::vector instead to avoid this.
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
Hi laserlight,
Thanks for your help
Can you help me?
I am new in C++, so I do not know how declare a std::vector with this size, can you indicate me how do it??
It might be along the lines of:
Of course, remember to #include <vector>.Code:typedef std::vector<std::vector<int> > vector2d; typedef std::vector<vector2d> vector3d; typedef std::vector<vector3d> vector4d; vector4d PSF(57, vector3d(57, vector2d(65, std::vector<int>(65))));
Look up a C++ Reference and learn How To Ask Questions The Smart Way
The really simple answer is to just make it static.
static int PSF[57][57][65][65];
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
