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< / pre > < pre class = "rust" > < code > < span class = "doccomment" > //! SBI console driver, for text output< / span >
< span class = "kw" > use< / span > < span class = "ident" > < span class = "kw" > crate< / span > ::sbi::console_putchar< / span > ;
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< span class = "kw" > use< / span > < span class = "ident" > core::fmt< / span > ::{< span class = "self" > self< / span > , < span class = "ident" > Write< / span > };
< span class = "kw" > struct< / span > < span class = "ident" > Stdout< / span > ;
< span class = "kw" > impl< / span > < span class = "ident" > Write< / span > < span class = "kw" > for< / span > < span class = "ident" > Stdout< / span > {
< span class = "kw" > fn< / span > < span class = "ident" > write_str< / span > (< span class = "kw-2" > & mut< / span > < span class = "self" > self< / span > , < span class = "ident" > s< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > str< / span > ) -> < span class = "ident" > fmt::Result< / span > {
< span class = "kw" > for< / span > < span class = "ident" > c< / span > < span class = "kw" > in< / span > < span class = "ident" > s< / span > .< span class = "ident" > chars< / span > () {
< span class = "ident" > console_putchar< / span > (< span class = "ident" > c< / span > < span class = "kw" > as< / span > < span class = "ident" > usize< / span > );
}
< span class = "prelude-val" > Ok< / span > (())
}
}
< span class = "kw" > pub< / span > < span class = "kw" > fn< / span > < span class = "ident" > print< / span > (< span class = "ident" > args< / span > : < span class = "ident" > fmt::Arguments< / span > ) {
< span class = "ident" > Stdout< / span > .< span class = "ident" > write_fmt< / span > (< span class = "ident" > args< / span > ).< span class = "ident" > unwrap< / span > ();
}
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< span class = "doccomment" > /// print string macro< / span >
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< span class = "attribute" > #[< span class = "ident" > macro_export< / span > ]< / span >
< span class = "macro" > macro_rules!< / span > < span class = "ident" > print< / span > {
(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > fmt< / span > : < span class = "ident" > literal< / span > $(, $(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > arg< / span > : < span class = "ident" > tt< / span > )< span class = "op" > +< / span > )< span class = "question-mark" > ?< / span > ) => {
< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > crate::console::print< / span > (< span class = "macro" > format_args!< / span > (< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > fmt< / span > $(, $(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > arg< / span > )< span class = "op" > +< / span > )< span class = "question-mark" > ?< / span > ));
}
}
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< span class = "doccomment" > /// println string macro< / span >
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< span class = "attribute" > #[< span class = "ident" > macro_export< / span > ]< / span >
< span class = "macro" > macro_rules!< / span > < span class = "ident" > println< / span > {
(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > fmt< / span > : < span class = "ident" > literal< / span > $(, $(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > arg< / span > : < span class = "ident" > tt< / span > )< span class = "op" > +< / span > )< span class = "question-mark" > ?< / span > ) => {
< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > crate::console::print< / span > (< span class = "macro" > format_args!< / span > (< span class = "macro" > concat!< / span > (< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > fmt< / span > , < span class = "string" > " \n" < / span > ) $(, $(< span class = "macro-nonterminal" > $< / span > < span class = "macro-nonterminal" > arg< / span > )< span class = "op" > +< / span > )< span class = "question-mark" > ?< / span > ));
}
}
< / code > < / pre > < / div >
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