Bob Plantz wrote:
Another rule I gave them is "multiplication and division have higher
precedence than addition and subtraction; use parentheses in all other
cases."
++
I used to always get tripped up in embedded code because "==" has
precedence over "&" which I do not believe is intuitive to most people.
unsigned int value;
#define BITSET 0x1234
// Wrong: always true if value is odd since BITSET == BITSET is
evaluated first
// which reduces to "(value & 1)"
if (value & BITSET == BITSET) {} // Bits are set
// Right:
if ((value & BITSET) == BITSET) {} // Bits are set
