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Rust: ntoa functions return buffer end

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This commit is contained in:
Alex Kotov 2022-05-30 17:09:24 +03:00
parent f1e773f6fd
commit 1d7e6e782b
Signed by: kotovalexarian
GPG key ID: 553C0EBBEB5D5F08
1 changed files with 16 additions and 10 deletions
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26
pkgs/rust/kernaux-sys/src/ntoa.rs
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@ -26,13 +26,13 @@ extern "C" {
) -> *mut c_char;
#[link_name = "kernaux_utoa10"]
pub fn utoa10(value: u64, buffer: *mut c_char);
pub fn utoa10(value: u64, buffer: *mut c_char) -> *mut c_char;
#[link_name = "kernaux_itoa10"]
pub fn itoa10(value: i64, buffer: *mut c_char);
pub fn itoa10(value: i64, buffer: *mut c_char) -> *mut c_char;
#[link_name = "kernaux_utoa16"]
pub fn utoa16(value: u64, buffer: *mut c_char);
pub fn utoa16(value: u64, buffer: *mut c_char) -> *mut c_char;
#[link_name = "kernaux_itoa16"]
pub fn itoa16(value: i64, buffer: *mut c_char);
pub fn itoa16(value: i64, buffer: *mut c_char) -> *mut c_char;
}
#[cfg(test)]
@ -145,48 +145,54 @@ mod tests {
#[test]
fn test_utoa10() {
let mut buffer: [i8; UTOA10_BUFFER_SIZE] = [0; UTOA10_BUFFER_SIZE];
unsafe { utoa10(123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { utoa10(123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(3) });
}
#[test]
fn test_itoa10() {
let mut buffer: [i8; ITOA10_BUFFER_SIZE] = [0; ITOA10_BUFFER_SIZE];
unsafe { itoa10(123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { itoa10(123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(3) });
let mut buffer: [i8; ITOA10_BUFFER_SIZE] = [0; ITOA10_BUFFER_SIZE];
unsafe { itoa10(-123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { itoa10(-123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "-123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(4) });
}
#[test]
fn test_utoa16() {
let mut buffer: [i8; UTOA16_BUFFER_SIZE] = [0; UTOA16_BUFFER_SIZE];
unsafe { utoa16(0x123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { utoa16(0x123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "0x123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(5) });
}
#[test]
fn test_itoa16() {
let mut buffer: [i8; ITOA16_BUFFER_SIZE] = [0; ITOA16_BUFFER_SIZE];
unsafe { itoa16(0x123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { itoa16(0x123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "0x123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(5) });
let mut buffer: [i8; ITOA16_BUFFER_SIZE] = [0; ITOA16_BUFFER_SIZE];
unsafe { itoa16(-0x123, buffer.as_mut_ptr()) };
let end: *mut c_char = unsafe { itoa16(-0x123, buffer.as_mut_ptr()) };
let result =
unsafe { CStr::from_ptr(buffer.as_ptr()) }.to_str().unwrap();
assert_eq!(result, "-0x123");
assert_eq!(end, unsafe { buffer.as_mut_ptr().offset(6) });
}
}