Create /09. Checksum Calc/ones_complement_checksum16bit

Author: aivan2798

02. Algorithms/08. Strings/09. Checksum Calc/ones_complement_checksum16bit.cpp

@@ -0,0 +1,31 @@
+//16bit binary adder with carry
+#include<iostream>
+using namespace std;
+
+uint16_t b16_adder(uint16_t a,uint16_t b)
+{
+ uint32_t total32=0;
+ total32=a+b;
+ uint16_t rem=(total32>>16);
+ uint16_t total16=(total32);
+ uint16_t real_total=(total16+rem);
+ 
+ return real_total;
+}
+
+//pointer to data array and array size
+uint16_t checksum_ans16(uint16_t *arr,uint data_size)
+{
+ uint sz=((data_size%2)>0?data_size+1:data_size);
+ uint16_t current_ans=0;
+ int x=0;
+ while(x<(sz/2))
+ {
+ uint16_t temp_ans=0;
+ uint16_t no=(arr[x]);
+ temp_ans=b16_adder(current_ans,no);
+ current_ans=(uint16_t)temp_ans;
+ }
+ x++;
+return (uint16_t)(~current_ans);
+}