#include <stdio.h>
#include <stdlib.h>
#define MAX_ROWS 5
#define MAX_COLS 5
int globalvariable = 100;
void CreateMatrix(int ***Matrix)
{
int **ptr;
char *cp;
int i = 0;
*Matrix = (int**)malloc((sizeof(int*) * MAX_ROWS) + ((MAX_ROWS * MAX_COLS)*sizeof(int)));
ptr = *Matrix;
cp = (char*)((char*)*Matrix + (sizeof(int*) * MAX_ROWS));
for(i =0; i < MAX_ROWS; i++)
{
cp = (char*)(cp + ((sizeof(int) * MAX_COLS) * i));
*ptr = (int*)cp;
ptr++;
}
}
void FillMatrix(int **Matrix)
{
int i = 0, j = 0;
for(i = 0; i < MAX_ROWS; i++)
{
for(j = 0; j < MAX_COLS; j++)
{
globalvariable++;
Matrix[i][j] = globalvariable;
}
}
}
void DisplayMatrix(int **Matrix)
{
int i = 0, j = 0;
for(i = 0; i < MAX_ROWS; i++)
{
printf("\n");
for(j = 0; j < MAX_COLS; j++)
{
printf("%d\t", Matrix[i][j]);
}
}
}
void FreeMatrix(int **Matrix)
{
free(Matrix);
}
int main()
{
int **Matrix1, **Matrix2;
CreateMatrix(&Matrix1);
FillMatrix(Matrix1);
DisplayMatrix(Matrix1);
FreeMatrix(Matrix1);
getchar();
return 0;
}
如果执行代码,我会在对话框中收到以下错误消息。
Windows has triggered a breakpoint in sam.exe.
This may be due to a corruption of the heap, which indicates a bug in sam.exe or any of the DLLs it has loaded.
This may also be due to the user pressing F12 while sam.exe has focus.
The output window may have more diagnostic information.
我尝试在 Visual Studio 中调试,执行printf("\n");
语句时DisplayMatrix()
,会重现相同的错误消息。
如果我按继续,它会按预期打印 101 到 125。在发布模式下,没有问题!!!.
请分享你的想法。