mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2026-05-29 15:15:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add sanity casts for 32/64 bit correctness

Browse Source
This commit is contained in:
gingerBill
2021-07-12 11:03:12 +01:00
parent ff2e5c3efe
commit 76707e1d2f
10 changed files with 66 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/big_int.cpp
View File

@@ -281,7 +281,25 @@ void big_int_mul(BigInt *dst, BigInt const *x, BigInt const *y) {
u64 leading_zeros_u64(u64 x) {
#if defined(GB_COMPILER_MSVC)
return __lzcnt64(x);
#if defined(GB_ARCH_64_BIT)
return __lzcnt64(x);
#else
u64 y, n;
n = 0;
y = x;
L:
if (x < 0) {
return n;
}
if (y == 0) {
return 64-n;
}
n++;
x <<= 1;
y >>= 1;
goto L;
#endif
#else
return cast(u64)__builtin_clzll(cast(unsigned long long)x);
#endif