+#if BIGINT_WORD_SIZE == 8
+ if(dest){
+ uint8_t *e = src->wordv + src->length_B;
+ uint16_t i;
+ for(i=src->length_B; i>0; --i){
+ *((uint8_t*)dest) = *--e;
+ dest = (uint8_t*)dest + 1;
+ }
+ }else{
+ bigint_changeendianess(src);
+ }
+
+ *out_length_B = src->length_B;
+#else