Remove the spaces at both ends of the string trimspace

There is a string beginning or ending with n spaces ("ABCDEFGDDDD") to remove the front and back spaces and return a new string.

int Trimspace (char *bufscr,char *bufdes) {int I=0;char *p=bufscr;//pointer variable, in order not to modify the incoming pointer int len=strlen (BUFSCR); int j=len-1;    int count;//non-null character length int ret=0;//first determine if the incoming pointer is empty if (bufscr==null| | Bufdes==null) {ret=-1;printf ("Func trimspace Err%d:", ret); return ret;} while (Isspace (p[i]) &&p[i]!= ' + ') {i++;} while (Isspace (P[j]) &&j>0) {j--;} count=j-i+1;memcpy (Bufdes,p+i,count);//It is important to note that the difference between a string array and a string is that the end of the string array is ' + '. bufdes[count]= ' + '; return ret;}

Remove the spaces at both ends of the string trimspace