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Diffstat (limited to 'subprojects/exess/test/int_test_data.h')
-rw-r--r-- | subprojects/exess/test/int_test_data.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/subprojects/exess/test/int_test_data.h b/subprojects/exess/test/int_test_data.h new file mode 100644 index 00000000..978f863b --- /dev/null +++ b/subprojects/exess/test/int_test_data.h @@ -0,0 +1,42 @@ +/* + Copyright 2019-2021 David Robillard <d@drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#ifndef INT_TEST_DATA_H +#define INT_TEST_DATA_H + +#include <stdint.h> + +/// Linear Congruential Generator for making random 32-bit integers +static inline uint32_t +lcg32(const uint32_t i) +{ + static const uint32_t a = 134775813u; + static const uint32_t c = 1u; + + return (a * i) + c; +} + +/// Linear Congruential Generator for making random 64-bit integers +static inline uint64_t +lcg64(const uint64_t i) +{ + static const uint64_t a = 6364136223846793005ull; + static const uint64_t c = 1ull; + + return (a * i) + c; +} + +#endif // INT_TEST_DATA_H |