bsd man page for dlerror

DLERROR(3)						     Linux Programmer's Manual							DLERROR(3)

NAME
       dlerror - obtain error diagnostic for functions in the dlopen API

SYNOPSIS
       #include <dlfcn.h>

       char *dlerror(void);

       Link with -ldl.

DESCRIPTION
       The  dlerror()  function returns a human-readable, null-terminated string describing the most recent error that occurred from a call to one
       of the functions in the dlopen API since the last call to dlerror().  The returned string does not include a trailing newline.

       dlerror() returns NULL if no errors have occurred since initialization or since it was last called.

VERSIONS
       dlerror() is present in glibc 2.0 and later.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |dlerror() | Thread safety | MT-Safe |
       +----------+---------------+---------+
CONFORMING TO
       POSIX.1-2001.

NOTES
       The message returned by dlerror() may reside in a statically allocated buffer that is overwritten by subsequent dlerror() calls.

   History
       This function is part of the dlopen API, derived from SunOS.

EXAMPLE
       See dlopen(3).

SEE ALSO
       dladdr(3), dlinfo(3), dlopen(3), dlsym(3)

COLOPHON
       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux								    2017-09-15								DLERROR(3)