stack

问题 I am converting a csh script to a python script. The script calls a memory-intensive executable which requires a very large stack, so the csh script sets the stacksize to unlimited: limit stacksize unlimited When I try to reproduce this script in python, I execute them in a very naive manner, using os.system , e.g.: os.system('some_executable') But I do not know how to tell the OS to run these executables with unlimited stacksize. Is there a way to specify stacksize for calls within a python

问题 For example if the parenthesis/brackets is matching in the following: ({}) (()){}() () and so on but if the parenthesis/brackets is not matching it should return false, eg: {} ({}( ){}) (() and so on. Can you please check this code? Thanks in advance. public static boolean isParenthesisMatch(String str) { Stack<Character> stack = new Stack<Character>(); char c; for(int i=0; i < str.length(); i++) { c = str.charAt(i); if(c == '{') return false; if(c == '(') stack.push(c); if(c == '{') { stack

问题 For example if the parenthesis/brackets is matching in the following: ({}) (()){}() () and so on but if the parenthesis/brackets is not matching it should return false, eg: {} ({}( ){}) (() and so on. Can you please check this code? Thanks in advance. public static boolean isParenthesisMatch(String str) { Stack<Character> stack = new Stack<Character>(); char c; for(int i=0; i < str.length(); i++) { c = str.charAt(i); if(c == '{') return false; if(c == '(') stack.push(c); if(c == '{') { stack

问题 Today's PCs have a large amount of physical RAM but still, the stack size of C# is only 1 MB for 32-bit processes and 4 MB for 64-bit processes (Stack capacity in C#). Why the stack size in CLR is still so limited? And why is it exactly 1 MB (4 MB) (and not 2 MB or 512 KB)? Why was it decided to use these amounts? I am interested in considerations and reasons behind that decision . 回答1: You are looking at the guy that made that choice. David Cutler and his team selected one megabyte as the

问题 Could someone tell me what the stack capacity is in C#. I am trying to form a 3D mesh closed object using an array of 30,000 items. 回答1: The default stack size for a .NET application is 1 MB (default is 256 KB for 32-bit ASP.NET apps and 512 KB for 64-bit ASP.NET apps), but you can change that. For the application you can change the default size by modifying the PE header of the executable. For threads you create, you can use the constructor overload that takes a stack size. But as Anton

问题 reading information about how to increase stack size for a c++ application compiled with gnu, at compilation time, I understood that it can be done with setrlimit at the beginning of the program. Nevertheless I could not find any successful example on how to use it and in which part of the program apply it in order to get a 64M stack size for a c++ program, could anybody help me? Thanlks 回答1: Normally you would set the stack size early on, e,g, at the start of main() , before calling any

问题 reading information about how to increase stack size for a c++ application compiled with gnu, at compilation time, I understood that it can be done with setrlimit at the beginning of the program. Nevertheless I could not find any successful example on how to use it and in which part of the program apply it in order to get a 64M stack size for a c++ program, could anybody help me? Thanlks 回答1: Normally you would set the stack size early on, e,g, at the start of main() , before calling any

问题 I have few benchmarks like fft, dijkstra. I want to collect the stack size of all library functions and user defined functions. C code is also available. I am managing cache in hardware, so i need the exact stack size of each small function, variable. 回答1: If compiling with a recent GCC you could pass the -fstack-usage flag to gcc (in addition of optimization flags, if any) which: Makes the compiler output stack usage information for the program, on a per-function basis. The filename for the

问题 I got "stack level too deep" error when I add following code in my controller. What's wrong and how to fix it? PS: If I replace "@survey.questions << Question.new(params{})" with "Question.new(params{})", the error could be correct. The "new" method in the controller: def new @survey = current_user.surveys.create(:current_user_id => current_user.id, :title => "Untitled Survey", :body => "Survey Description") @survey.questions << Question.new(:name => "Example - Single Row Text", :required =>

问题 Is there a numpy method which is equivalent to the builtin pop for python lists? Popping obviously doesn't work on numpy arrays, and I want to avoid a list conversion. 回答1: There is no pop method for NumPy arrays, but you could just use basic slicing (which would be efficient since it returns a view, not a copy): In [104]: y = np.arange(5); y Out[105]: array([0, 1, 2, 3, 4]) In [106]: last, y = y[-1], y[:-1] In [107]: last, y Out[107]: (4, array([0, 1, 2, 3])) If there were a pop method it