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printf: fix printing +-prefixed numbers

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Thanks to Cristian Ionescu-Idbohrn for noticing.

Also fix "%d" '  42' to skip leading whitespace.

function                                             old     new   delta
print_direc                                          435     454     +19
bb_strtoll                                            99     103      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
This commit is contained in:
Bernhard Reutner-Fischer
2018-10-19 15:25:41 +02:00
parent 7effa31cd4
commit 3db4e7f84c
3 changed files with 37 additions and 3 deletions
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2
libbb/bb_strtonum.c
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@@ -81,7 +81,7 @@ long long FAST_FUNC bb_strtoll(const char *arg, char **endp, int base)
/* Check for the weird "feature":
* a "-" string is apparently a valid "number" for strto[u]l[l]!
* It returns zero and errno is 0! :( */
first = (arg[0] != '-' ? arg[0] : arg[1]);
first = (arg[0] != '-' && arg[0] != '+' ? arg[0] : arg[1]);
if (!isalnum(first)) return ret_ERANGE();
errno = 0;