mirror/v
1
0
Fork 0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
Code Issues Projects Releases Wiki Activity

expression: set integer literals as int by default

Browse Source
This commit is contained in:
SleepyRoy
2020-03-24 03:05:37 +08:00
committed by GitHub
parent 5c9cbae10d
commit 67ba56c65c
14 changed files with 788 additions and 793 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
vlib/math/bits/bits.v
View File

@ -9,7 +9,7 @@ const (
de_bruijn32tab = [byte(0), 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9,
]
de_bruijn64 = (0x03f79d71b4ca8b09)
de_bruijn64 = u64(0x03f79d71b4ca8b09)
de_bruijn64tab = [byte(0), 1, 56, 2, 57, 49, 28, 3, 61, 58, 42, 50, 38, 29, 17, 4,
62, 47, 59, 36, 45, 43, 51, 22, 53, 39, 33, 30, 24, 18, 12, 5,
63, 55, 48, 27, 60, 41, 37, 16, 46, 35, 44, 21, 52, 32, 23, 11,
@ -18,17 +18,17 @@ const (
)
const (
m0 = 0x5555555555555555 // 01010101 ...
m1 = 0x3333333333333333 // 00110011 ...
m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
m3 = 0x00ff00ff00ff00ff // etc.
m4 = 0x0000ffff0000ffff
m0 = u64(0x5555555555555555) // 01010101 ...
m1 = u64(0x3333333333333333) // 00110011 ...
m2 = u64(0x0f0f0f0f0f0f0f0f) // 00001111 ...
m3 = u64(0x00ff00ff00ff00ff) // etc.
m4 = u64(0x0000ffff0000ffff)
)
const (
// save importing math mod just for these
max_u32 = 4294967295
max_u64 = 18446744073709551615
max_u32 = u32(4294967295)
max_u64 = u64(18446744073709551615)
)
// --- LeadingZeros ---
@ -371,7 +371,7 @@ pub fn sub_64(x u64, y u64, borrow u64) (u64, u64) {
// --- Full-width multiply ---
const (
two32 = 0x1_0000_0000
two32 = u64(0x1_0000_0000)
mask32 = two32 - 1
overflow_error = "Overflow Error"
divide_error = "Divide Error"

2
vlib/math/bits/bits_test.v
View File

@ -277,7 +277,7 @@ fn test_bits(){
for x in 0..62 {
hi := u64(i) << x
lo := u64(2) //hi - 1
y := 0x4000_0000_0000_0000
y := u64(0x4000_0000_0000_0000)
quo, rem := div_64(hi, lo, y)
//C.printf("[%016llx_%016llx] %016llx (%016llx,%016llx)\n", hi, lo, y, quo, rem)
assert quo == u64(2)<<(x+1)