I have an issue. I want to use the size defined by user in the matrix, but I have that error...
Any idea?
I'm using the C Language
int play(int matrix[][],int sz, char play_user[1]){
if (play_user[0] =='a'){
int left();
left(matrix[sz][sz],sz);
}
int left(int matrix[][], int sz){
for(int i=0;i<sz;++i){
for(int j=0;j<sz;++j){
printf("%d\t", matrix[i][j]);
}
printf("\n");
}
Rather than
int left(int matrix[][], int sz);
Pass the size information first. This uses a variable length array, available in C99, optional in C11, C17.
int left(int sz, int matrix[sz][sz])
Or better yet, pass both dimensions and use size_t
int left(size_t rows, size_t cols, int matrix[rows][cols]);
int play(size_t sz, int matrix[sz][sz], char play_user[1]) {
if (play_user[0] == 'a') {
return left(sz, sz, matrix);
}
return 0;
}
int left(size_t rows, size_t cols, int matrix[rows][cols]) {
for (size_t r = 0; r < rows; ++r) {
for (size_t c = 0; c < cols; ++c) {
printf("%d\t", matrix[r][c]);
}
printf("\n");
}
return 0;
}
See also Passing a multidimensional variable length array to a function
int matrix[][]isn't legal C. And when next posting a question about an error, include the full, verbatim error message in your question, and mark the line on which it occurs in your source list.left()here. Why thisint left();? Remove it, as you are declaring inside one function.