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builtin: add trailing 0 to reversed string (#10248)

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This commit is contained in:
Uwe Krüger
2021-05-29 15:45:26 +02:00
committed by GitHub
parent bd467f94ab
commit 15557161cc
1 changed files with 6 additions and 3 deletions
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9
vlib/builtin/string.v
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@ -1621,7 +1621,7 @@ pub fn (s string) reverse() string {
return s.clone() return s.clone()
} }
mut res := string{ mut res := string{
str: unsafe { malloc(s.len) } str: unsafe { malloc(s.len + 1) }
len: s.len len: s.len
} }
for i := s.len - 1; i >= 0; i-- { for i := s.len - 1; i >= 0; i-- {
@ -1629,6 +1629,9 @@ pub fn (s string) reverse() string {
res.str[s.len - i - 1] = s[i] res.str[s.len - i - 1] = s[i]
} }
} }
unsafe {
res.str[res.len] = 0
}
return res return res
} }
@ -1681,11 +1684,11 @@ pub fn (s string) repeat(count int) string {
} }
} }
} }
unsafe {
new_len := s.len * count new_len := s.len * count
unsafe {
ret[new_len] = 0 ret[new_len] = 0
return ret.vstring_with_len(new_len)
} }
return unsafe { ret.vstring_with_len(new_len) }
} }
// fields returns a string array of the string split by `\t` and ` ` // fields returns a string array of the string split by `\t` and ` `