Two bytes to int c

// bytes_to_int_example.cpp
// Output: port = 514

// I am assuming that the bytes the bytes need to be treated as 0-255 and combined MSB -> LSB

// This creates a macro in your code that does the conversion and can be tweaked as necessary
#define bytes_to_u16(MSB,LSB) (((unsigned int) ((unsigned char) MSB)) & 255)<<8 | (((unsigned char) LSB)&255) 
// Note: #define statements do not typically have semi-colons
#include <stdio.h>

int main()
{
  char buf[2];
  // Fill buf with example numbers
  buf[0]=2; // (Least significant byte)
  buf[1]=2; // (Most significant byte)
  // If endian is other way around swap bytes!

  unsigned int port=bytes_to_u16(buf[1],buf[0]);

  printf("port = %u \n",port);

  return 0;
}

Source: stackoverflow.com

Similar codes

1 vote221 views1 answer
Dvlprroshan
C
0 vote228 views3 answers
Print 2d array in c
C
0 vote218 views1 answer
National festivals of india in hindi
C
1 vote245 views1 answer
C modify char array
C
0 vote228 views3 answers
Script in c
C
1 vote244 views2 answers
C << operator
C
1 vote219 views1 answer
How to use gets after scanf
C
0 vote234 views1 answer
Algorithm for dequeue
C
1 vote251 views2 answers
Print float in c
C
28 votes241 views2 answers
Link list c
C