From 01ab373aac3ef679ba0d4d89568b189b94936075 Mon Sep 17 00:00:00 2001 From: Freya Murphy Date: Wed, 16 Apr 2025 16:48:40 -0400 Subject: add binary radix (%b) to printf --- user/lib/printf.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'user/lib') diff --git a/user/lib/printf.c b/user/lib/printf.c index 89806da..4d20263 100644 --- a/user/lib/printf.c +++ b/user/lib/printf.c @@ -224,6 +224,9 @@ static void get_radix(char spec, options_t *opts) case 'o': opts->radix = 8; break; + case 'b': + opts->radix = 2; + break; default: opts->radix = 10; break; @@ -288,6 +291,10 @@ static int printf_lltoa(char *buf, options_t *opts, bool is_neg, // radix specifier if (opts->hash) { + if (opts->radix == 2) { + *(buf++) = 'b'; + *(buf++) = '0'; + } if (opts->radix == 8) { *(buf++) = 'o'; *(buf++) = '0'; @@ -440,6 +447,7 @@ static void do_printf(context_t *ctx, va_list args) case 'd': case 'i': case 'u': + case 'b': case 'o': case 'x': case 'X': @@ -487,6 +495,7 @@ static void do_printf(context_t *ctx, va_list args) // unsigned int case 'p': case 'u': + case 'b': case 'o': case 'x': case 'X': -- cgit v1.2.3-freya