From 6f7c1546d6f57160644745429c13c5c9e8ca5b2e Mon Sep 17 00:00:00 2001 From: Leo Tenenbaum Date: Wed, 3 Mar 2021 12:05:11 -0500 Subject: finally figured out what wasn't working with buffer_set_line_len! hooray!!!!! --- util.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'util.c') diff --git a/util.c b/util.c index 632bd0e..f0daa09 100644 --- a/util.c +++ b/util.c @@ -20,16 +20,24 @@ static u8 util_popcount(u64 x) { #endif } -static u8 util_count_leading_zeroes(u64 x) { +static u8 util_count_leading_zeroes32(u32 x) { + if (x == 0) return 32; // GCC's __builtin_clz is undefined for x = 0 #if __GNUC__ - return (u8)__builtin_clzll(x); +#if UINT_MAX == 4294967295 + return (u8)__builtin_clz(x); +#else + #error "unsigned int isn't 32 bits. this function needs fixing to work on sytems like yours." +#endif #elif _WIN32 - return (u8)__lzcnt64(x); + return (u8)__lzcnt(x); #else u8 count = 0; - for (int i = 63; i >= 0; --i) - if (x & ((u64)1<= 0; --i) { + if (x & ((u32)1<