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Use the memchr crate

Browse Source 
https://github.com/BurntSushi/rust-memchr is supposed to be a whole
lot faster :)
This commit is contained in:
jD91mZM2
2019-04-21 19:09:37 +02:00
parent fa94f1b6d5
commit 3a3fd3da39
5 changed files with 20 additions and 72 deletions
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src/header/strings/mod.rs
+4 -31
View File
@@ -2,20 +2,12 @@
use core::ptr;
use header::ctype;
use header::{ctype, string};
use platform::types::*;
#[no_mangle]
pub unsafe extern "C" fn bcmp(first: *const c_void, second: *const c_void, n: size_t) -> c_int {
let first = first as *const c_char;
let second = second as *const c_char;
for i in 0..n as isize {
if *first.offset(i) != *second.offset(i) {
return -1;
}
}
0
string::memcmp(first, second, n)
}
#[no_mangle]
@@ -38,31 +30,12 @@ pub extern "C" fn ffs(i: c_int) -> c_int {
#[no_mangle]
pub unsafe extern "C" fn index(mut s: *const c_char, c: c_int) -> *mut c_char {
while *s != 0 {
if *s == c as c_char {
// Input is const but output is mutable. WHY C, WHY DO THIS?
return s as *mut c_char;
}
s = s.offset(1);
}
ptr::null_mut()
string::strchr(s, c)
}
#[no_mangle]
pub unsafe extern "C" fn rindex(mut s: *const c_char, c: c_int) -> *mut c_char {
let original = s;
while *s != 0 {
s = s.offset(1);
}
while s != original {
s = s.offset(-1);
if *s == c as c_char {
// Input is const but output is mutable. WHY C, WHY DO THIS?
return s as *mut c_char;
}
}
ptr::null_mut()
string::strrchr(s, c)
}
#[no_mangle]