diff options
Diffstat (limited to 'lib/tiny-printf.c')
| -rw-r--r-- | lib/tiny-printf.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c index 403b134cd1..a06abed495 100644 --- a/lib/tiny-printf.c +++ b/lib/tiny-printf.c @@ -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))); @@ -108,8 +116,10 @@ int vprintf(const char *fmt, va_list va) w--; while (w-- > 0) putc(lz ? '0' : ' '); - while ((ch = *p++)) - putc(ch); + if (p) { + while ((ch = *p++)) + putc(ch); + } } } |