stack

问题 I want to finish all the activities which are running in the application means want to remove all the parent activities from stack. I want to implement logout functionality locally in my application so what I was thinking, I will finish all the activities started before and will start login activity again.. 回答1: I should let you know this is not a recommended behavior in android since you should let itself to manage life circles of activities. However if you really need to do this, you can

问题 I'm reading C# 4.0 in a Nutshell by the Albahari brothers and I came across this: Stacks are implemented internally with an array that's resized as required , as with Queue and List. (pg 288, paragraph 4) I can't help but wonder why. LinkedList provides O(1) head and tail inserts and deletes (which should work well for a stack or queue). A resizable array has O(1) amortized insert (if I remember right), but O(n) worst case (I'm not sure about delete). And it probably uses more space than the

问题 We recently attempted to break apart some of our Visual Studio projects into libraries, and everything seemed to compile and build fine in a test project with one of the library projects as a dependency. However, attempting to run the application gave us the following nasty run-time error message: Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function pointer declared with a different calling convention. We

问题 Is there any control how much you can Recursively call something? From a basic test program I get a recursion depth of just over 18k which depends on the stacksize.... is there a way to set up a chunk of memory (perhaps a thread) with a massive stack to increase recursion depth? 回答1: I've increased the stack size during some documents recognition. It was really needed. So you can increase stack size for thread using following code: var stackSize = 10000000; Thread thread = new Thread(new

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 months ago . Stack create(int c) { Stack S=(Stack)malloc(sizeof(struct stack)); S->size=c; S->top=-1; S->array=(char *)malloc(sizeof(char)*c); return S; } Stack makeEmpty(void) { Stack *S1=create(100); S1[0]->top=-1; return S1; } char pop(Stack S) { return S->array[S->top--]; }; int main(void) { Stack *S1; S1=makeEmpty();

问题 So I have a graph in the form of an adjacency list, structured as in the code below. Given this form of a data structure, I was wondering how it would be possible to go about finding and printing all the possible paths from a given node to another node. I'm aware I might have to used stacks to perform a DFS or queues to perform BFS, which I know how to do, but am confused by how to find all the possible paths typedef struct graph { int n, maxn; Vertex** vertices; }Graph; typedef struct vertex

问题 I'm trying to build an arbitrary precision calculator. I represent numbers in linked lists (one node is a single digit), and I want to store them in a stack. However, I can't seem to figure out how to break the mathematical expression received as a string apart while keeping the right mathematical operations order. For example, if the inserted expression is 6*8-2+8-8*9/4 , I'll represent numbers as linked lists and insert them into a stack, and insert the operators into a different stack, and

问题 I'm currently trying to do some tests with the buffer overflow vulnerability. Here is the vulnerable code void win() { printf("code flow successfully changed\n"); } int main(int argc, char **argv) { volatile int (*fp)(); char buffer[64]; fp = 0; gets(buffer); if(fp) { printf("calling function pointer, jumping to 0x%08x\n", fp); fp(); } } The exploit is quite sample and very basic: all what I need here is to overflow the buffer and override the fp value to make it hold the address of win()

问题 While debugging on Windows XP 32-bit using the immunity debugger, I see the following on the stack: _Address_ -Value_ 00ff2254 ff090045 00ff2258 00000002 My understanding is that every address location contains 8 bits. Is this correct? 回答1: If I'm understanding your question correctly, the answer is yes, every individual memory location contains 8 bits. The debugger is showing you 4 bytes (32 bits) at a time, to make the display more compact (and because many data types take up 32 bits, so it

问题 This question already has answers here : Size of stack and heap memory [duplicate] (4 answers) What and where are the stack and heap? (25 answers) Does C need a stack and a heap in order to run? (3 answers) Closed last year . Does the C language definition require the existence of a stack? What about architectures that don't support stacks? Does that mean that such architectures can't implement the C language as it is defined? What about the heap? 回答1: No. The C11 standard does not contain