Error c2466 невозможно выделить память для массива постоянного нулевого размера

1

Hmm. Did you try creating a pointer or reference to destination->imageSize and passing that in for the index instead?

void readImage(std::vector<char>& imageData, std::string& filename)
{
    size_t imageSize = 0;
    //read file and load imageSize
    imageData.resize(imageSize);
    // load image into imageData using such as you in your question
    for(int i = 0; i < destination->imageSize; i=i+3)
    { 

        buffer[2] = destination->imageData[i];
        buffer[1] = destination->imageData[i+1];
        buffer[0] = destination->imageData[i+2];
        buffer+=3;
    }
}

const int imageSize = 4242; 
char imageData[imageSize]; // No C2466 error

2

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 [2012-09-21 12:53 UTC] laruence@php.net

here is a tricky way to fix this, please try with it:

vi {THE VS INSTALL FODLER}vcincludemalloc.h 

change the line:
#define _STATIC_ASSERT(expr) typedef char __static_assert_t[ (expr) ]  

to:

#ifdef PHP_WIN32  
#define _STATIC_ASSERT(expr) typedef char __static_assert_t[ (expr)?(expr):1 ]  
#else  
#define _STATIC_ASSERT(expr) typedef char __static_assert_t[ (expr) ]  
#endif

 [2012-09-21 13:18 UTC] gospodin dot p dot zh at gmail dot com

<i>[2012-09-21 12:53 UTC] laruence@php.net
here is a tricky way to fix this, please try with it: </i>
----------------------
IMPOSIBRU!!1 This worked fine! Thanks a lot! I've spend 2 days trying to solve one 
of those errors. Finally i can go on writing extension which can give me the only 
instance of COM connection to third part application on apache server, available 
and same for each web-site user (session).

 [2012-10-01 13:25 UTC] ab@php.net

 [2012-10-01 13:25 UTC] ab@php.net

this looks like solved :)

Answers

• I’m trying to statically allocate memory for an array using a const int instead of hardcoding the number of elements in the array declaration.

  That’s allowed in C++ but not in C (as implemented by
  VC++ according to the C89/90 ANSI/ISO C Standard). If
  your program has the .C extension it will be compiled
  using the C compiler by default. If it has *.CPP it
  will be compiled using the C++ compiler by default.
  These defaults can be overridden via the project
  properties.

  C99 allows VLAs (Variable Length Arrays) but VC++
  hasn’t implemented that feature.

  — Wayne

  • Marked as answer by
    Damon ZhengModerator
    Friday, October 5, 2012 6:50 AM

• Not knowing the project type you created, I wrote this simple program that compiles and runs in both VS 2010 Express and VS 2012 Express Desktop.

  Perhaps looking at this code will help you see the issues in yours. If not, please post a short complete program that will not compile on your system.

  #include <iostream>
  
  using namespace std;
  
  const int SIZE = 100;
  
  int main()
  {
  	int myArray[SIZE];
  	cout << "Array created" << endl;
  	cin.get();
  	return 0;
  }

  Also, please tell us which VC++ Express version you are using.

  • Edited by
    pvdg42
    Saturday, September 29, 2012 2:29 PM
  • Marked as answer by
    Damon ZhengModerator
    Friday, October 5, 2012 6:51 AM

Answers

• I’m trying to statically allocate memory for an array using a const int instead of hardcoding the number of elements in the array declaration.

  That’s allowed in C++ but not in C (as implemented by
  VC++ according to the C89/90 ANSI/ISO C Standard). If
  your program has the .C extension it will be compiled
  using the C compiler by default. If it has *.CPP it
  will be compiled using the C++ compiler by default.
  These defaults can be overridden via the project
  properties.

  C99 allows VLAs (Variable Length Arrays) but VC++
  hasn’t implemented that feature.

  — Wayne

  • Marked as answer by
    Damon ZhengModerator
    Friday, October 5, 2012 6:50 AM

• Not knowing the project type you created, I wrote this simple program that compiles and runs in both VS 2010 Express and VS 2012 Express Desktop.

  Perhaps looking at this code will help you see the issues in yours. If not, please post a short complete program that will not compile on your system.

  #include <iostream>
  
  using namespace std;
  
  const int SIZE = 100;
  
  int main()
  {
  	int myArray[SIZE];
  	cout << "Array created" << endl;
  	cin.get();
  	return 0;
  }

  Also, please tell us which VC++ Express version you are using.

  • Edited by
    pvdg42
    Saturday, September 29, 2012 2:29 PM
  • Marked as answer by
    Damon ZhengModerator
    Friday, October 5, 2012 6:51 AM