On Wednesday, November 23, 2011 18:35:44 Antonio Quartulli wrote:
in case of dynamic type variable, it could be needed to compute at compile time its maximal value. This macro helps in doing that for unsigned integer types
Signed-off-by: Antonio Quartulli ordex@autistici.org
main.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/main.h b/main.h index 464439f..3c58235 100644 --- a/main.h +++ b/main.h @@ -210,6 +210,9 @@ static inline int compare_eth(const void *data1, const void *data2) /* Returns the smallest signed integer in two's complement with the sizeof x */ #define smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) +/* Returns the biggest unsigned integer with the sizeof x */ +#define biggest_unsigned_int(x) (~(x)0)
The final conclusion of the IRC discussion might have escaped me but wasn't there supposed to be a cast somewhere ?
Regards, Marek