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putchar ::= #foreign("putchar", "libc.so.6") fn(#C int) #C int;
toc_putchar ::= fn(x: char) {
putchar(x as #C int);
}
printf ::= #foreign("printf", "libc.so.6") fn(#C &"char const", #C ..) #C int;
writes ::= fn(x: []char) {
printf_strfmt := "%s\0";
printf(&printf_strfmt[0], &x[0]);
}
puts ::= fn(x: []char) {
writes(x);
toc_putchar('\n');
}
writei ::= fn(x: int) {
if x < 0 {
toc_putchar('-');
// NOTE: don't do x = -x; here to make sure I64_MIN works
}
if x == 0 {
toc_putchar('0');
} else {
abs ::= fn(x: int) int { if x < 0 { -x } else { x } };
scan_digit := 1000000000000000000;
started := false;
while scan_digit > 0 {
digit := abs((x / scan_digit) % 10);
if digit > 0 { started = true; }
if started {
toc_putchar((('0' as int) + digit) as char);
}
scan_digit /= 10;
}
}
}
puti ::= fn(x: int) {
writei(x);
toc_putchar('\n');
}
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