How to pass char** in python ctype?

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How to pass char** in python ctype and once it is modified in 'C++' code how do i access it

I'm trying to access a c++ function from python using ctypes int func(void**, char**policy_names) { // 1.allocate memory to policy_names // 2.fill policy_names with policy names ex: policy_names[0] ="hi" policy_names[1]="bye" return 0; } memory allocation happens in c++ func mentioned above and the policy_name is filled with list of strings . python code: policy_list = POINTER(c_char)() Handle = c_void_p() Getpolicy = lib.func() func.argtypes = [c_void_p, POINTER(POINTER...

Answer:

I some how fixed it after some research it should be the following way: I'm trying to access a c++ function...

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In what part of his program can i change the Password(turbo c)?

include<stdio.h> #include<conio.h> #include<ctype.h> pass(); menu(); new(); display(); search(); delete(); load(); load2(); load3(); border(); FILE *jsp; FILE *hj; main(){ pass(); } border(){ int a,b; clrscr(); textbackground(BLACK...

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Freed Justine at Yahoo! Answers Mark as irrelevant Undo

2D char array pass by reference problems?

include<stdio.h> #include<stdlib.h> #include<string.h> #include<math.h> #include <time.h> void createDeck(char *DECK[52][4]); int main() { char DECK[52][4];//deck createDeck(DECK); } void createDeck(char *DECK[52][4]) {...

Answer:

char a[10] and char *a are in some sense sound 1-D character arrays char a[10][20], char *a[10], char...

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Does Python (Programming Language) pass a variable to function by-value or by-reference?

I can see Python pass a number or string by value: >>> def foo(x): ...     x += 1 ...     print x ... >>> a 1 >>> foo(a) 2 >>> a 1 If you pass a list to a function, however: >>> def bar(l)...

Answer:

Everything is passed by reference: >>> def id(x): ... return x ... >>> x...

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Jelle Zijlstra at Quora Mark as irrelevant Undo

Confused on how to pass char *argv[]?

Im need to check if argv[1] is a number but im not sure how to pas it to a function to check with is digit. This is what I have right now. bool is_legal(char *argv[]) { for(int i = 0; argv[i]; i++) if(!isdigit(argv[i])) { cerr << "Error: invalid...

Answer:

If you are simply passing one variable within the array index, then you function implementation "...

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How do you pass argument to functions in Python?

page = """ <div class="product-primarydata "> <p class="p product-price"> <span class="price-mrp"><del>Rs.100</del></span> <span class="price-fsp...

Answer:

Is get_tag function part of a class ?. If not then just remove self from the function definition i.e...

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Ankur Gupta at Quora Mark as irrelevant Undo

How can Python behave differently when I pass two seemingly identical variables to a function?

What I'm doing is this: #Just two directions: s = [0,1,0] t = [0,0,1] #Two ways of getting the center c1 = [0,1,0] c2 = test.point_to_space(point) p = draw.squarepoints(c1, s, t, 1) plane = mlab.mesh(*p) This works perfectly, but fails horribly if...

Answer:

In general, c1 and c2 are different objects, with possibly different superclasses. Just because c1 ...

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Allen Polak at Quora Mark as irrelevant Undo

C++, how to copy char pointer to char array using new producing different addresses?

We have an exercise in our training that requires us to use the new operator to copy a char pointer to a char array. I have successfully done that by using a function. From main, a quoted string is passed to a function that accepts a char pointer. And...

Answer:

The address of the pointers in the two calls relative to each other is indeterminent. It could be the...

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Runtime error when trying to pass varible to function it aborts plz help?

Runtime error when trying to pass varible to function it aborts plz help? this code appears to work for other people, but not me, I've tried everything and the people who can help me DON'T apparently when my program tries to pass the number variable...

Answer:

Hi,Sean There are 3 step to repair runtime error If you got runtime error then there is a 94% chance...

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Sean at Yahoo! Answers Mark as irrelevant Undo

Is Pyston (a new JIT enabled Python interpreter from Dropbox) badly designed?

Recently, I have been trying to contribute to [Pyston][1], a JIT compiler for Python made open source by Dropbox. I was quite excited about the project and was looking forward to contribute, but it's been a wild, long ride. To put it delicately, the...

Answer:

First of all, I'll emphatically agree that there are large swaths of the codebase that could be better...

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Kevin Modzelewski at Quora Mark as irrelevant Undo

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