# Function openssl::memcmp::eq [−] [src]

    pub fn eq(a: &[u8], b: &[u8]) -> bool

Returns `true` iff `a` and `b` contain the same bytes.

This operation takes an amount of time dependent on the length of the two arrays given, but is independent of the contents of a and b.

# Panics

This function will panic the current task if `a` and `b` do not have the same length.

# Examples

To perform a constant-time comparision of two arrays of the same length but different values:

    use openssl::memcmp::eq;

    // We want to compare `a` to `b` and `c`, without giving
    // away through timing analysis that `c` is more similar to `a`
    // than `b`.
    let a = [0, 0, 0];
    let b = [1, 1, 1];
    let c = [0, 0, 1];

    // These statements will execute in the same amount of time.
    assert!(!eq(&a, &b));
    assert!(!eq(&a, &c));