32 lines
494 B
C
32 lines
494 B
C
#include <stddef.h>
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static unsigned int seed = 0;
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void srand(unsigned int _seed)
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{
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seed = _seed;
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}
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int rand(void)
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{
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int next = seed;
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int result;
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next *= 1103515245;
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next += 12345;
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result = (int)(next / 65536) % 2048;
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next *= 1103515245;
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next += 12345;
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result <<= 10;
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result ^= (int)(next / 65536) % 1024;
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next *= 1103515245;
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next += 12345;
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result <<= 10;
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result ^= (int)(next / 65536) % 1024;
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seed = next;
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return result;
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}
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