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Commit | Line | Data |
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1 | .Dd April 17, 2006 | |
2 | .Dt DLERROR 3 | |
3 | .Sh NAME | |
4 | .Nm dlerror | |
5 | .Nd get diagnostic information | |
6 | .Sh SYNOPSIS | |
7 | .In dlfcn.h | |
8 | .Ft const char* | |
9 | .Fn dlerror "void" | |
10 | .Sh DESCRIPTION | |
11 | .Fn dlerror | |
12 | returns a null-terminated character string describing the last error that | |
13 | occurred on this thread during a call to | |
14 | .Fn dlopen , | |
15 | .Fn dlopen_preflight , | |
16 | .Fn dlsym , | |
17 | or | |
18 | .Fn dlclose . | |
19 | If no such error has occurred, | |
20 | .Fn dlerror | |
21 | returns a null pointer. | |
22 | At each call to | |
23 | .Fn dlerror , | |
24 | the error indication is reset. Thus in the case of two calls | |
25 | to | |
26 | .Fn dlerror , | |
27 | where the second call follows the first immediately, the second call | |
28 | will always return a null pointer. | |
29 | .Sh SEE ALSO | |
30 | .Xr dlopen 3 | |
31 | .Xr dlopen_preflight 3 | |
32 | .Xr dlclose 3 | |
33 | .Xr dlsym 3 | |
34 | .Xr dyld 3 |