ggml : ggml_set_rows update comment + better index name

Author: ggerganov

ggml/include/ggml.h

@@ -1383,6 +1383,8 @@ extern "C" {
     // b TS  [n_embd, n_rows, ne02,   ne03] | ne02 == ne2, ne03 == ne3
     // c I64 [n_rows, ne11,   ne12,   1]    | c[i] in [0, ne1)
     //
+    // undefined behavior if destination rows overlap
+    //
     // broadcast:
     //   ne2 % ne11 == 0
     //   ne3 % ne12 == 0

ggml/src/ggml-cpu/ops.cpp

@@ -4558,13 +4558,13 @@ static void ggml_compute_forward_set_rows_f32(
                 const int64_t i11 = i02%ne11;
                 const int64_t i10 = i;
 
-                const int64_t i01 = *(int64_t *) ((char *) src1->data + i10*nb10 + i11*nb11 + i12*nb12);
+                const int64_t i1 = *(int64_t *) ((char *) src1->data + i10*nb10 + i11*nb11 + i12*nb12);
 
-                GGML_ASSERT(i01 >= 0 && i01 < ne1);
+                GGML_ASSERT(i1 >= 0 && i1 < ne1);
 
                 from_float(
-                        (const float *) ((char *) src0->data +   i*nb01 + i02*nb02 + i03*nb03),
-                                        ((char *)  dst->data + i01*nb1  + i02*nb2  + i03*nb3), nc);
+                        (const float *) ((char *) src0->data +  i*nb01 + i02*nb02 + i03*nb03),
+                                        ((char *)  dst->data + i1*nb1  + i02*nb2  + i03*nb3), nc);
             }
         }
     }