411 static void fetch(FILE_and_pos_t *ft, const off_t *ix, int a, int b, int ch)  in fetch()  argument
415 		seek_ft(ft, ix[i - 1]);  in fetch()
419 		for (j = 0, col = 0; j < ix[i] - ix[i - 1]; j++) {  in fetch()
450 static NOINLINE int *create_J(FILE_and_pos_t ft[2], int nlen[2], off_t *ix[2])  in create_J()
504 		ix[i] = xmalloc((nlen[i] + 2) * sizeof(ix[i][0]));  in create_J()
506 			ix[i][j] = nfile[i][j].offset;  in create_J()
575 		seek_ft(&ft[0], ix[0][i - 1]);  in create_J()
576 		seek_ft(&ft[1], ix[1][J[i] - 1]);  in create_J()
599 	off_t *ix[2];  in diff()  local
611 	J = create_J(ft, nlen, ix);  in diff()
648 						nonempty |= (ix[j][k] - ix[j][k - 1] != 1);  in diff()
688 				fetch(&ft[0], ix[0], lowa, end ? span[0].b : (*cvp)[0].a - 1, ' ');  in diff()
692 					fetch(&ft[j], ix[j], (*cvp)[j].a, (*cvp)[j].b, j ? '+' : '-');  in diff()
701 	free(ix[0]);  in diff()
702 	free(ix[1]);  in diff()