我正在尝试集成Prolog和C++。我使用SWI作为Prolog,Embarcadero Rad Studio用于C++。我想在C++中输入,在Prolog中处理输入,并在C++中显示输出。
首先,它给出了“无法执行链接”错误,但是在链接库之后,它给出了错误:
[ILINK32 Error] Error: 'C:\PROGRAM FILES
(X86)\SWIPL\LIB\LIBSWIPL.LIB' contains invalid OMF record, type 0x21
(possibly COFF)
我搜索并找到了使用implib.exe
解析它的方法,并创建了一个新的库newlibswipl.lib
。
在程序中链接它之后,它会给出以下错误:
[ILINK32 Error] Error: Unresolved external '_PL_cut_query' referenced
from C:\USERS\DOCUMENTS\RAD STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ
[ILINK32 Error] Error: Unresolved external '_PL_new_term_ref'
referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_exception' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_fatal_error' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_chars_to_term' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_put_term' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_predicate' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_open_query' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_next_solution' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_get_arg' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_get_name_arity' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unresolved
external '_PL_atom_chars' referenced from C:\USERS\DOCUMENTS\RAD
STUDIO\PROJECTS\DEBUG\NEWPROLOG.OBJ [ILINK32 Error] Error: Unable to
perform link
C++代码:
// newprolog.cpp
#include <math.h>
#include <iostream>
#include <sstream>
#include "SWI-cpp.h"
#include "SWI-Prolog.h"
#include "SWI-Stream.h"
#pragma comment(lib,"C:\Program Files (x86)\swipl\lib\newlibswipl.lib");
using namespace std;
term_t a;
term_t b;
term_t ans;
functor_t fun;
int main()
{
int digit;
cout << "\nPlease enter a digit to calculate it's Factorial.." << endl;
cin >> digit;
PlCall("consult(swi('C:\Program Files(x86)\swipl\swipl-win.rc'))");
PlCall("consult('factorial.pl')");
a = PL_new_term_ref();
PL_put_integer(a, digit);
b = PL_new_term_ref();
ans = PL_new_term_ref();
fun = PL_new_functor(PL_new_atom("factorial"),2);
PL_cons_functor(ans, fun, a, b);
int fact;
if(PL_call(ans, NULL)) {
PL_get_integer(b, &fact);
//int numb = fact;
}
return 0;
}
和factorial.pl
factorial(1, 1) :- !.
factorial(X, Fac) :-
X > 1,
Y is X - 1,
factorial(Y, New_Fac),
Fac is X * New_Fac.
实际上,我是从youtube视频中引用的,在视频中,这个人使用的是QT创建者而不是Rad Studio。链接是Swi-Prolog与QT Creator C++接口,但我想使用Embarcadero进行链接。有人能帮帮我吗.
发布于 2016-03-16 20:51:48
谢谢大家的建议。我找到了将SWI库与Embarcadero Rad Studio链接的解决方案。
解决方案:
implib.exe
将SWI库libswipl.dll
转换为COFF格式库,因为库是OMF格式的,所需的格式是COFF格式。此包含解决了链接错误并执行了项目。
谢谢大家的建议。
https://stackoverflow.com/questions/36004132
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