Call a function in a shared library: Difference between revisions
Call a function in a shared library (view source)
Revision as of 11:55, 17 November 2023
, 6 months ago→{{header|Wren}}: Capitalize Wren & C file names.
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dllclient.ahk
<syntaxhighlight lang="autohotkey">Msgbox, hello from client</syntaxhighlight>
=={{header|BaCon}}==▼
▲==={{header|BaCon}}===
<syntaxhighlight lang="qbasic">' Call a dynamic library function
PROTO j0
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prompt$ ./calllib
0.765198</pre>
▲=={{header|BBC BASIC}}==
==={{header|BBC BASIC}}===
{{works with|BBC BASIC for Windows}}
The following shared libraries are automatically available: ADVAPI32.DLL, COMCTL32.DLL, COMDLG32.DLL, GDI32.DLL, KERNEL32.DLL, SHELL32.DLL, USER32.DLL and WINMM.DLL.
<syntaxhighlight lang="bbcbasic"> SYS "MessageBox", @hwnd%, "This is a test message", 0, 0
</syntaxhighlight>
=={{header|C}}==
{{works with|POSIX|.1-2001}}
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cols= 96
</pre>
=={{header|RPL}}==
There is no library concept in RPL. However, in 1990, Jan Christiaan van Winkel proposed to the RPL community a way to get something close.
Assuming the programs frequently needed are stored in a specific directory named <code>MyLib</code> located at root directory, the following program, also located at the root directory, can be invoked by any program to access one of the library features.
{{works with|Halcyon Calc|4.2.7}}
{| class="wikitable"
! RPL code
! Comment
|-
|
≪
PATH ➜ owd
≪ HOME MyLib RCL
1 owd SIZE '''FOR''' i
owd i GET EVAL '''NEXT'''
≫ EVAL
≫ ''''CALL'''' STO
|
'''CALL''' ''( 'Program_name' -- depending on call )''
save the old directory
push the library routine on the stack
now go back to the old directory
step by step
run the library routine
|}
{{in}}
<pre>
97 'PRIM?' CALL
</pre>
{{out}}
<pre>
1: 1
</pre>
=={{header|Ruby}}==
This script uses Fiddle from Ruby's standard library to open <code>fakeimglib.so</code> from the [[#C|C example]].
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end
exit status</syntaxhighlight>
=={{header|Rust}}==
The standard library does not provide a way to load dynamic libraries. Without using third-party libraries, we must use the FFI to call the relevant C functions directly.
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{{trans|C}}
An embedded program so we can ask the C host to call the shared library function for us.
<syntaxhighlight lang="
var RTLD_LAZY = 1
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<br>
Finally, we embed the Wren script in the following C program, compile and run it:
<syntaxhighlight lang="c">/* gcc
#include <stdio.h>
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WrenVM* vm = wrenNewVM(&config);
const char* module = "main";
const char* fileName = "
char *script = readFile(fileName);
WrenInterpretResult result = wrenInterpret(vm, module, script);
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Same as C example depending on whether fakeimglib.so is present in the current directory or not.
</pre>
=={{header|X86-64 Assembly}}==
===UASM 2.52===
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