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| author | Alejandro Colomar <alx.manpages@gmail.com> | 2021-12-22 19:00:20 +0100 |
|---|---|---|
| committer | Alejandro Colomar <alx.manpages@gmail.com> | 2021-12-22 19:05:20 +0100 |
| commit | f2d38227b35b6788294b90c07556a1bc85b00992 (patch) | |
| tree | 06536d80f4081ce05ccc6dc37a325fc9d2879dea /man3 | |
| parent | 7936bacb92bd2fb88290b1e3e03939cc4c3e0d64 (diff) | |
| download | man-pages-f2d38227b35b6788294b90c07556a1bc85b00992.tar.gz | |
printf.3: Document %#m as strerrorname_np(errno)
Reported-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Cc: libc-alpha@sourceware.org
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man3')
| -rw-r--r-- | man3/printf.3 | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/man3/printf.3 b/man3/printf.3 index 4fa1f11f3c..1e2bac4dfa 100644 --- a/man3/printf.3 +++ b/man3/printf.3 @@ -301,6 +301,17 @@ and .B G conversions, trailing zeros are not removed from the result as they would otherwise be. +For +.BR m , +if +.I errno +contains a valid error code, +the output of +.I strerrorname_np(errno) +is printed; +otherwise, the value stored in +.I errno +is printed as a decimal number. For other conversions, the result is undefined. .TP .B \&0 @@ -853,7 +864,10 @@ any flags, a field width, or a precision. .B m (Glibc extension; supported by uClibc and musl.) Print output of -.IR strerror(errno) . +.I strerror(errno) +(or +.I strerrorname_np(errno) +in the alternate form). No argument is required. .TP .B % @@ -974,6 +988,13 @@ and conversion characters \fBa\fP and \fBA\fP. .PP glibc 2.2 adds the conversion character \fBF\fP with C99 semantics, and the flag character \fBI\fP. +.PP +glibc 2.35 gives a meaning to the alternate form +.RB ( # ) +of the +.B m +conversion specifier, that is +.IR %#m . .SH NOTES Some programs imprudently rely on code such as the following .PP |