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| author | Sergey Bugaev <bugaevc@gmail.com> | 2019-08-09 23:24:53 +0300 |
|---|---|---|
| committer | Andreas Kling <awesomekling@gmail.com> | 2019-08-10 08:46:22 +0200 |
| commit | 79f867238a9b5c35805f6218aa0e04019eca1db2 (patch) | |
| tree | fef54cf702bd32166d31c163824a867fb244c554 | |
| parent | cfe8fdd5aaf1937563278ac6a30d57593df24c7c (diff) | |
| download | serenity-79f867238a9b5c35805f6218aa0e04019eca1db2.zip | |
printf: Support dynamic fill widths
The printf formatting mini-language actually allows you
to pass a '*' character in place of the fill width specification,
in which case it eats one of the passed in arguments and uses it
as width, so implement that.
| -rw-r--r-- | AK/PrintfImplementation.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/AK/PrintfImplementation.h b/AK/PrintfImplementation.h index 2899fb04ab..40f127694a 100644 --- a/AK/PrintfImplementation.h +++ b/AK/PrintfImplementation.h @@ -222,6 +222,11 @@ template<typename PutChFunc> if (*(p + 1)) goto one_more; } + if (*p == '*') { + fieldWidth = va_arg(ap, int); + if (*(p + 1)) + goto one_more; + } if (*p == 'l') { ++long_qualifiers; if (*(p + 1)) |