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rand: add pub fn rand.read(mut buf []byte)
and pub fn rand.bytes(needed int) ?[]byte{}
+ tests
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@ -174,6 +174,16 @@ pub fn f64_in_range(min f64, max f64) f64 {
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return default_rng.f64_in_range(min, max)
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}
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// bytes returns a buffer of `bytes_needed` random bytes
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pub fn bytes(bytes_needed int) ?[]byte {
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if bytes_needed < 0 {
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return error('can not read < 0 random bytes')
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}
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mut res := []byte{len: bytes_needed}
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read(mut res)
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return res
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}
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const (
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english_letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
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hex_chars = 'abcdef0123456789'
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