Page 110 - C-Language

{
return false;
}
}

Or evaluate any non-zero value as true.

/* Return 'true' if the most significant bit is set */
bool isUpperBitSet(uint8_t bitField)
{
/* If upper bit is set, result is 0x80 which the if will evaluate as true */
if (bitField & 0x80)
{
return true;
}
else
{
return false;
}
}

Floating point literals are of type double by default

Care must be taken when initializing variables of type float to literal values or comparing them
with literal values, because regular floating point literals like 0.1 are of type double. This may lead
to surprises:

#include <stdio.h>
int main() {
float n;
n = 0.1;
if (n > 0.1) printf("Wierd\n");
return 0;
}
// Prints "Wierd" when n is float

Here, n gets initialized and rounded to single precision, resulting in value 0.10000000149011612.
Then, n is converted back to double precision to be compared with 0.1 literal (which equals to
0.10000000000000001), resulting in a mismatch.

Besides rounding errors, mixing float variables with double literals will result in poor performance
on platforms which don't have hardware support for double precision.

Read Common pitfalls online: https://riptutorial.com/c/topic/2006/common-pitfalls

https://riptutorial.com/ 86