#!/bin/rc
echo T.builtin: test miscellaneous builtin functions >[1=2]

$awk 'BEGIN { print index(123, substr(123, 2)) }' >foo1
echo 2 >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: index/substr' >[1=2]

$awk 'BEGIN {
	pi = 2 * atan2(1, 0)
	printf("%.5f %.3f %.3f %.5f %.3f\n",
		pi, sin(pi), cos(pi/2), exp(log(pi)), log(exp(10)))
}' >foo1
echo '3.14159 0.000 0.000 3.14159 10.000' >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: sin/cos' >[1=2]

$awk 'BEGIN {
	s = srand(1)	# set a real random start
	for (i = 1; i <= 10; i++)
		print rand() >"foo1"
	srand(s)	# reset it
	for (i = 1; i <= 10; i++)
		print rand() >"foo2"
}'
diff foo1 foo2 || echo 'BAD: T.builtin: rand' >[1=2]

echo 'hello, WORLD!' |
$awk '{ printf("%s|%s|%s\n", tolower($0), toupper($0), $0)}' >foo1
echo 'hello, world!|HELLO, WORLD!|hello, WORLD!' >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: toupper/tolower' >[1=2]

echo 'Dürst' |
$awk '{ printf("%s|%s|%s\n", tolower($0), toupper($0), $0)}' >foo1
echo 'dürst|DÜRST|Dürst' >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: toupper/tolower for utf-8' >[1=2]

$awk 'BEGIN { print 0.01 }' /dev/null >foo1
echo '0.01' >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: LC_NUMERIC radix (.) handling' >[1=2]

$awk 'BEGIN {
	j = 1; sprintf("%d", 99, ++j)	# does j get incremented?
	if (j != 2)
		print "BAD: T.builtin: printf arg list not evaluated"
}' >[1=2]

$awk 'BEGIN {
	j = 1; substr("", 1, ++j)	# does j get incremented?
	if (j != 2)
		print "BAD: T.builtin: substr arg list not evaluated"
}' >[1=2]

$awk 'BEGIN {
	j = 1; sub(/1/, ++j, z)	# does j get incremented?
	if (j != 2)
		print "BAD: T.builtin: sub() arg list not evaluated"
}' >[1=2]

$awk 'BEGIN {
	j = 1; length("zzzz", ++j, ++j)	# does j get incremented?
	if (j != 3)
		print "BAD: T.builtin: excess length args not evaluated"
}' >[2]foo
grep 'too many arg' foo >/dev/null || echo 'BAD: T.builtin: too many args not caught' >[1=2]

echo 'a
a b
a b c' >foo0
echo '1
2
3' >foo1
$awk '{ n = split($0, x); print length(x) }' <foo0 >foo2
diff foo1 foo2 || echo 'BAD: T.builtin: length array' >[1=2]