diff options
Diffstat (limited to 'lib/libc/string/strerror.3')
| -rw-r--r-- | lib/libc/string/strerror.3 | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/lib/libc/string/strerror.3 b/lib/libc/string/strerror.3 index 784c06168ada..ebf18fda1792 100644 --- a/lib/libc/string/strerror.3 +++ b/lib/libc/string/strerror.3 @@ -48,8 +48,8 @@ .Fd #include <stdio.h> .Ft void .Fn perror "const char *string" -.Vt extern char *sys_errlist[]; -.Vt extern int sys_nerr; +.Vt extern const char * const sys_errlist[]; +.Vt extern const int sys_nerr; .Fd #include <string.h> .Ft char * .Fn strerror "int errnum" @@ -100,11 +100,11 @@ followed by the error number in decimal. .Pp The message strings can be accessed directly using the external array -.Fa sys_errlist . +.Va sys_errlist . The external value -.Fa sys_nerr +.Va sys_nerr contains a count of the messages in -.Fa sys_errlist . +.Va sys_errlist . The use of these variables is deprecated; .Fn strerror should be used instead. @@ -122,3 +122,8 @@ For unknown error numbers, the .Fn strerror function will return its result in a static buffer which may be overwritten by subsequent calls. +.Pp +Programs that use the deprecated +.Va sys_errlist +variable often fail to compile because they declare it +inconsistently. |