@node sys_errlist, stdio
@subheading Syntax

@example
#include <errno.h>

extern char *sys_errlist[];
@end example

@subheading Description

This array contains error messages, indexed by @code{errno}, that
describe the errors. 

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
printf("Error: %s\n", sys_errlist[errno]);
@end example

@c ----------------------------------------------------------------------
@node sys_nerr, stdio
@subheading Syntax

@example
#include <errno.h>

extern int sys_nerr;
@end example

@subheading Description

This variable gives the number of error messages in @code{sys_errlist}
(@pxref{sys_errlist}). 

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
if (errno < sys_nerr)
  printf("Error: %s\n", sys_errlist[errno]);
@end example