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Full Discussion: access .so file in C and C++
Top Forums Programming access .so file in C and C++ Post 302228128 by p50p100 on Saturday 23rd of August 2008 01:14:03 AM
Old 08-23-2008
You should add extern to header file.

Code:
#if defined(__cplusplus)
extern "C"
{
#endif
    //ptototype declare
    char *yourfunction(void);

#if defined(__cplusplus)
}
#endif

If you want to know the reason why it needs,
please compare with results of below command with and without above description.
Code:
readelf -sD libYourlib.so | grep "FUNC *GLOBAL"

 

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exexedat(3alleg4)						  Allegro manual						 exexedat(3alleg4)

NAME
exexedat - Appending datafiles onto your executable. Allegro game programming library. SYNOPSIS
#include <allegro.h> Example exexedat DESCRIPTION
This program demonstrates how to access the contents of an Allegro datafile (created by the grabber utility) linked to the executable by the exedat tool. It is basically the exdata example with minor modifications. You may ask: how do you compile, append and exec your program? Answer: like this... 1) Compile your program like normal. Use the magic filenames with '#' to load your data where needed. 2) Once you compressed your program, run "exedat foo.exe data.dat" 3) Finally run your program. Note that appending data to the end of binaries may not be portable across all platforms supported by Allegro. SEE ALSO
DATAFILE(3alleg4), END_OF_MAIN(3alleg4), allegro_error(3alleg4), allegro_init(3alleg4), allegro_message(3alleg4), blit(3alleg4), font(3alleg4), install_keyboard(3alleg4), line(3alleg4), load_datafile(3alleg4), makecol(3alleg4), readkey(3alleg4), screen(3alleg4), set_color_conversion(3alleg4), set_gfx_mode(3alleg4), set_palette(3alleg4), textout_ex(3alleg4), unload_datafile(3alleg4) Allegro version 4.4.2 exexedat(3alleg4)
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