When implementing an infinite loop, is there a difference in using while(1) vs for(;;) vs goto (in C)?

Question

When implementing an infinite loop, is there a difference in using while(1) vs for(;;) vs goto?

Thanks, Chenz

Answer 1

In C, true is implemented as follows (depending on compiler)

#define TRUE 1

or

#define TRUE (-1)

AND false is implemented as

#define FALSE 0

so while (1) is equivalent to while (true) since 0 is considered false.

the while (1) == for (; ;) as there are no stopping condition.

which is translated to assembler as

:loop
  ...
  ...
  ...
  goto loop

so if the assembler code doesn't have a ret or exit instruction, it's considered a infinite loop.