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我试图找出我进入的功能。
我不知道该怎么做,我从来没有使用过线程。
问题区域被标记。
void matrixACreate(struct a *);
void *status;
struct a
{
int Arow; // Matrix A
int Acol; // WxX
int low; // Range low
int high;
};
int main(int argc, char * argv[])
{
struct a matrix_mult_info;
matrix_mult_info.Arow = atoi(argv[1]); // Matrix A
matrix_mult_info.Acol = atoi(argv[2]); // WxX
matrix_mult_info.low = atoi(argv[5]); // Range low
matrix_mult_info.high = atoi(argv[6]);
pthread_t matrixAthread;
pthread_t runner;
int error, retValue;
//if (Acol != Brow)
//{
// cout << " This matrix cannot be multiplied. FAIL" << endl;
// return 0;
//}
//HERE IS THE PROBLEM IN THE NEXT LINE:
error = pthread_create(&matrixAthread, NULL, matrixACreate, matrix_mult_info);
// I don't know what to pass as the last parameter
retValue = pthread_join(matrixAthread, &status);
return 0;
}
void matrixACreate(struct a *matrix) {
struct a *data = (struct a *) malloc(sizeof(struct a));
data->Arow = matrix->Arow;
data->Acol = matrix->Acol;
int range = ((matrix->high - matrix->low) + 1);
cout << matrix->Arow << endl;
free(data);
}
或许与所请求的信息更新http://stackoverflow.com/questions/5227087/error-with-passing-a-pointer-using-threads,而不是Ø写一个新的问题? – Erik 2011-03-08 01:52:48