// How to use parameters of printf
// in the Raspberry Pi Pico with the Pico SDK.
//
// Reference:
//   https://cplusplus.com/reference/cstdio/printf/


#include <stdio.h>
#include "pico/stdlib.h"

int main() 
{
  stdio_init_all();
  while (true) 
  {
    // First parameter is a signed long integer
    long first = 1234567890L;

    // Second parameter is a unsigned hex integer
    unsigned int second = 0x1234ABCD;

    // Third parameter is 64 bit, but the sprintf can not
    // specify the number of bits of a variable.
    // Solution: make a "unsigned long long" variable.
    unsigned long long third = time_us_64() / 1000000ULL;

    // Fourth parameter is unsigned decimal integer
    unsigned int fourth = 4000000;

    printf("%011ld %08X %06lld %u\n", first, second, third, fourth);

    // Now with smaller and larger values
    // A very common mistake is the size,
    // it is the minimum size.
    first = 890L;
    second = 0xD;
    third = time_us_64() - 1ULL;
    fourth = 4;
    printf("%011ld %08X %06lld %u\n", first, second, third, fourth);

    // Now with calculations.
    // Avoid trouble by using only the right variable
    // for each parameter.
    long make_a_variable_of_it = first*27/123L;
    unsigned int put_it_in_a_variable = second/fourth;
    unsigned long long a_variable_is_the_solution = time_us_64() / 1000ULL;
    unsigned int use_variables = (unsigned int) (first / (long)fourth);
    printf("%011ld %08X %06lld %u\n", make_a_variable_of_it, put_it_in_a_variable, a_variable_is_the_solution, use_variables);

    printf("----------- -------- ------ -------\n");
    sleep_ms(5000);
  }
}