diff options
Diffstat (limited to 'man3/strerror.3')
| -rw-r--r-- | man3/strerror.3 | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/man3/strerror.3 b/man3/strerror.3 index 8186a4673c..8dd8edad46 100644 --- a/man3/strerror.3 +++ b/man3/strerror.3 @@ -34,7 +34,7 @@ .\" 2005-12-13, mtk, Substantial rewrite of strerror_r() description .\" Addition of extra material on portability and standards. .\" -.TH STRERROR 3 2005-12-13 "" "Linux Programmer's Manual" +.TH STRERROR 3 2007-07-26 "" "Linux Programmer's Manual" .SH NAME strerror, strerror_r \- return string describing error number .SH SYNOPSIS @@ -44,14 +44,18 @@ strerror, strerror_r \- return string describing error number .BI "char *strerror(int " errnum ); .sp .BI "char *strerror_r(int " errnum ", char *" buf ", size_t " buflen ); - /* GNU-specific strerror_r() */ +.fi .sp -.B #define _XOPEN_SOURCE 600 -.B #include <string.h> +.in -4n +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.in .sp -.BI "int strerror_r(int " errnum ", char *" buf ", size_t " buflen ); - /* XSI-compliant strerror_r() */ -.fi +The XSI-compliant version of +.BR strerror_r () +is provided if: +.br +(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !\ _GNU_SOURCE .SH DESCRIPTION The .BR strerror () @@ -72,13 +76,19 @@ function is similar to but is thread safe. This function is available in two versions: -an XSI-compliant version specified in POSIX.1-2001, +an XSI-compliant version specified in POSIX.1-2001 +(available since glibc 2.3.4), and a GNU-specific version (available since glibc 2.0). -If -.B _XOPEN_SOURCE -is defined with the value 600, -then the XSI-compliant version is provided, +The XSI-compliant version is provided with the feature test macros +settings shown in the SYNOPSIS; otherwise the GNU-specific version is provided. +If no feature test macros are explicitly defined, +then (since glibc 2.4) +.BR _POSIX_SOURCE +is defined by default with the value +200112L, so that the XSI-compliant version of +.BR strerror_r () +is provided by default. The XSI-compliant .BR strerror_r () @@ -161,5 +171,4 @@ if the error number is unknown. .BR errno (3), .BR error (3), .BR perror (3), -.BR strsignal (3), -.BR feature_test_macros (7) +.BR strsignal (3) |