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7caf2066d8
This makes sure that newlib's printf is correctly overridden by: 1. Adding wrappers for some more obscure printf() variants 2. Forcing a compilation failure when newlib's stdio is still linked in while mpaland-printf is used 3. Not adding `-u _printf_float` to the linker flags when mpaland-printf is used.
29 lines
1.3 KiB
Diff
29 lines
1.3 KiB
Diff
From d864493f611c1435133b7b9c7cdce49d969b16b7 Mon Sep 17 00:00:00 2001
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From: Marian Buschsieweke <marian.buschsieweke@posteo.net>
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Date: Sat, 11 May 2024 22:42:21 +0200
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Subject: [PATCH 1/4] Fix parsing of `int8_t`
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The code assumes that `char` is signed, but the C standard allows
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`char` to be either signed or unsigned. Instead, `singed char` and
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`unsigned char` need to be used for portable code.
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---
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printf.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/printf.c b/printf.c
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index 8a700ad..e6e18fa 100644
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--- a/printf.c
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+++ b/printf.c
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@@ -732,7 +732,7 @@ static int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const
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idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned long)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
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}
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else {
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- const int value = (flags & FLAGS_CHAR) ? (char)va_arg(va, int) : (flags & FLAGS_SHORT) ? (short int)va_arg(va, int) : va_arg(va, int);
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+ const int value = (flags & FLAGS_CHAR) ? (signed char)va_arg(va, int) : (flags & FLAGS_SHORT) ? (short int)va_arg(va, int) : va_arg(va, int);
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idx = _ntoa_long(out, buffer, idx, maxlen, (unsigned int)(value > 0 ? value : 0 - value), value < 0, base, precision, width, flags);
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}
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}
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--
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2.43.0
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