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26 lines
504 B
V
26 lines
504 B
V
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module rand
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fn C.rand() int
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fn C.srand(u32)
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pub fn seed(s int) {
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C.srand(s)
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}
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pub fn next(max int) int {
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return C.rand() % max
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}
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// rand_r returns a pseudo-random number;
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// writes a result value to the seed argument.
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pub fn rand_r(seed mut int) int {
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ns := *seed * 1103515245 + 12345
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(*seed) = ns
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return ns & 0x7fffffff
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}
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