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.

EXAMPLES

       See dlopen(3).

SEE ALSO

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

COLOPHON

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       found at https://www.kernel.org/doc/man-pages/.