diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2016-09-07 11:25:18 +0300 |
|---|---|---|
| committer | Andrew Boie <andrew.p.boie@intel.com> | 2016-09-07 15:10:57 +0000 |
| commit | 65a8e3c1c9e99bc952440fb7194a30dba6ed65a4 (patch) | |
| tree | b31e23581be7c186c80e444680cbc3ad2a7a66c3 /lib | |
| parent | 92de81c36d2451d9e8f18fd383b052a52d5de709 (diff) | |
libc: printf: Add support for 'z' length specifier
The 'z' length specifier is the appropriate one to be used with size_t
(%zu) and ssize_t (%zd) types. Having support for this in our libc
means that we can utilize the compiler format string checks
(__printf_like) without getting warnings of incorrect format
specifiers for size_t and ssize_t variables.
Change-Id: I73fec0145692e0a59934cab548caf24c1c16a3df
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/minimal/source/stdout/prf.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/libc/minimal/source/stdout/prf.c b/lib/libc/minimal/source/stdout/prf.c index 6e6d829c1..f394133d2 100644 --- a/lib/libc/minimal/source/stdout/prf.c +++ b/lib/libc/minimal/source/stdout/prf.c @@ -615,10 +615,11 @@ int _prf(int (*func)(), void *dest, char *format, va_list vargs) * h: short * l: long * L: long double + * z: size_t or ssize_t * No further special processing is done for them. */ - if (strchr("hlL", c) != NULL) { + if (strchr("hlLz", c) != NULL) { i = c; c = *format++; switch (i) { @@ -636,6 +637,12 @@ int _prf(int (*func)(), void *dest, char *format, va_list vargs) if (strchr("eEfgG", c) == NULL) break; break; + + case 'z': + if (strchr("diouxX", c) == NULL) + break; + break; + } } |