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tiny-printf: Always print zeroes

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At present this does not print zero values in numeric format (hex and
decimal). Add a special case for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Simon Glass 2016-01-05 09:30:57 -07:00
parent 5589a81829
commit 74b1320ae5
1 changed files with 12 additions and 4 deletions
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16
lib/tiny-printf.c
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@ -82,13 +82,21 @@ int vprintf(const char *fmt, va_list va)
num = -(int)num;
out('-');
}
for (div = 1000000000; div; div /= 10)
div_out(&num, div);
if (!num) {
out_dgt(0);
} else {
for (div = 1000000000; div; div /= 10)
div_out(&num, div);
}
break;
case 'x':
num = va_arg(va, unsigned int);
for (div = 0x10000000; div; div /= 0x10)
div_out(&num, div);
if (!num) {
out_dgt(0);
} else {
for (div = 0x10000000; div; div /= 0x10)
div_out(&num, div);
}
break;
case 'c':
out((char)(va_arg(va, int)));