local M = {}

local snippet = {
[[
#include <stdio.h>
int main(void)
{
	long x = 470020878965;
	puts((void *)&x);
	return 0;
}
]],
[[
float Q_rsqrt(float number)
{
	long i;
	float x2, y;
	const float threehalfs = 1.5F;
	x2 = number * 0.5F;
	y = number;
	i = *(long *)&y;
	i = 0x5f3759df - (i >> 1);
	y = *(float *)&i;
	y = y * (threehalfs - (x2 * y * y));
	return y;
}
]],
[[
#include <stdio.h>
int main(int argc, char **argv)
{
	return printf("%s: Comma operator\n", argv[0]), 2;
}
]],
[[
void welford(double x, double *n, double *mean, double *m2)
{
	(*n)++;
	double d = x - *mean;
	*mean += d / *n;
	*m2 += d * (x - *mean);
}
]],
[[
#define ever (;;)
for ever {
	;
}
]],
[[
void *xmalloc(size_t size)
{
	void *r = malloc(size);
	if (!r)
		abort();
	return r;
}
]],
[[
#include <stdint.h>
uint32_t rotl32(uint32_t x, uint32_t n)
{
	return (x << n) | (x >> (32 - n));
}
]],
[[
#include <stddef.h>
void memzero(void *p, size_t n)
{
	unsigned char *t = p;
	while (n--)
		*t++ = 0;
}
]],
[[
#include <stdio.h>
int main(void)
{
	int a = 0;
	if (a++ == 0 && a++ == 1 && a++ == 2)
		printf("chain ok\n");
	return 0;
}
]],
[[
static unsigned long next = 1;
int lrand(void)
{
	next = next * 1103515245 + 12345;
	return (unsigned)(next / 65536) & 32767;
}
]],

[[
#!/bin/sh
set -eu
printf '%s\n' "$1"
]],
[[
#!/bin/sh
if [ "$#" -eq 0 ]; then
	exit 1
fi
printf '%s\n' "$@"
]],
[[
#!/bin/sh
x=0
while :; do
	x=$((x + 1))
	[ "$x" -gt 3 ] && break
done
printf '%s\n' "$x"
]],
[[
#!/bin/sh
exec 3>&1
printf 'ok\n' >&3
]],
[[
#!/bin/sh
f() {
	printf '%s\n' "$1"
}
f "${1:-none}"
]],
[[
#!/bin/sh
for i in a b c; do
	printf '%s\n' "$i"
done
]],
[[
#!/bin/sh
x=$(printf '%s' foo)
printf '%s\n' "$x"
]],
[[
#!/bin/sh
read x
printf '%s\n' "$x"
]],
[[
#!/bin/sh
PATH=/bin:/usr/bin
export PATH
printf '%s\n' "$PATH"
]],
[[
#!/bin/sh
trap 'printf trap\n' HUP INT TERM
sleep 1
]]
}

M.daily_random = function()
	local t = os.date("*t")
	local seed = t.day + t.month * 31 + t.year * 997
	local a = 1103515245
	local c = 12345
	local m = 2 ^ 31
	seed = (a * seed + c) % m
	local r = seed / m
	local n = #snippet
	return snippet[math.floor(r * n) + 1]
end

return M