我可以通过在c中同时索引两个矩阵来将一个矩阵的值传递给另一个矩阵吗？
我正在编写一段使用结构和5个预定义函数的代码，在将选定索引处的输入二维数组的值传递到新的二维数组时遇到问题 我已经包括了我的函数和我遇到困难的函数代码我可以通过在c中同时索引两个矩阵来将一个矩阵的值传递给另一个矩阵吗？,c,function,pointers,multidimensional-array,C,Function,Pointers,Multidimensional Array,我正在编写一段使用结构和5个预定义函数的代码，在将选定索引处的输入二维数组的值传递到新的二维数组时遇到问题 我已经包括了我的函数和我遇到困难的函数代码 struct matrix { char name; int mValues[10][10]; int ncols; int nrows; }; void matrixInput(struct matrix *matA); void matrixDisplay(struct matrix matA); void matrixTrace(stru
struct matrix
{
char name;
int mValues[10][10];
int ncols;
int nrows;
};
void matrixInput(struct matrix *matA);
void matrixDisplay(struct matrix matA);
void matrixTrace(struct matrix matA, int *trace);
void matrixDeterminant(struct matrix m1, struct matrix *m2, int * determinant);
///function body
void matrixDeterminant(struct matrix m1, struct matrix *m2, int * determinant)
{
int i, j, k, l;
FILE* fin;
fin = fopen("marks.txt", "r");
if(((m1.nrows)>2))
{
printf("\n\nFinding the deterinamt now.\n");
if(fin!=NULL)
{
do
{
printf("Please assign a letter to name your matrix A - Z : ");
scanf(" %c", &((*m2).name));
}
while((((*m2).name)<'A') || ((*m2).name)>'Z');
do
{
printf("\n\nEnter the row where you want to start the 2x2 matrix.\nNumber needs to be between 1 and %d : ", ((m1).nrows-1));
scanf("%d", &k);
}
while((k) >= ((m1).nrows));
do
{
printf("\n\nEnter the column where you want to start you 2x2 mtrix.\nNumber needs to be between 1 and %d : ", ((m1).ncols-1));
scanf("%d", &l);
}
while((l) >= ((m1).ncols));
}
for(i=0; i<2; i++,k++)
{
printf("Row %d:\t", i+1);
for(j=0; j<2; j++,l++)
{
((*m2).mValues[i][j]) = ((m1).mValues[k-1][l-1]);
printf("%d\t",((*m2).mValues[i][j]));
}
printf("\n");
}
}
/// Input/Output
Please assign a letter to name your matrix A - Z : H
Please enter the number of rows in matrix H > 1 < 10 :8
Please enter the number of cols in matrix H > 1 < 10 :8
Matrix H has 8 rows and 8 columns and contains:
Row 1: 55 7 40 30 32 45 43 77
Row 2: 72 1 20 65 85 40 46 22
Row 3: 45 77 88 32 30 55 59 99
Row 4: 72 37 33 18 44 73 44 12
Row 5: 88 2 11 55 7 40 30 32
Row 6: 24 73 13 99 99 22 45 77
Row 7: 88 32 22 11 98 34 38 37
Row 8: 33 18 44 73 22 45 77 88
Trace of matrix H = 317
Finding the deterinamt now.
Please assign a letter to name your matrix A - Z : F
Enter the row where you want to start the 2x2 matrix.
Number needs to be between 1 and 7 : 3
Enter the column where you want to start you 2x2 mtrix.
Number needs to be between 1 and 7 : 3
Row 1: 88 32
Row 2: 44 73 // This has shifted 2 columns.
Process returned 0 (0x0) execution time : 14.807 s
Press ENTER to continue.
任何帮助都将不胜感激。当您退出第二个循环（
jl loop i => i=0, k=3, j=0, l=3
loop j => i=0, k=3, j=0, l=3
loop j => i=0, k=3, j=1, l=4
exit loop j => i=0, k=3, j=2, l=5
loop i => i=1, k=4, j=2, l=5
so on...
因此，当您退出第二个循环时，您的索引已损坏！当您退出第二个循环（
jl loop i => i=0, k=3, j=0, l=3
loop j => i=0, k=3, j=0, l=3
loop j => i=0, k=3, j=1, l=4
exit loop j => i=0, k=3, j=2, l=5
loop i => i=1, k=4, j=2, l=5
so on...
因此，当您退出第二个循环时，索引已损坏！最内层循环中递增的l是罪魁祸首
对于（j=0；j来说，在最内层循环中增加的l是罪魁祸首
for（j=0；jOff主题：小写“L”变量名不是最令人高兴的选择。它们太容易与数字1混淆。如果你不本能地避免这种选择，你将在将来为自己设置一个困难的调试会话。@JohnColeman谢谢你的建议，我会记住继续前进。
struct matrix m1，struct matrix*m2struct matrix m1，struct matrix*m2