LNK2019。。

secondsen

项目 --> 属性 --> 链接器 -->  输入 --> 附近依赖项。。。这个的，不适用，应该。。。因为，都是我自己写的

struct _2nDs_Vector2D
{
    float x;
    float y;

    inline void Set(float fx, float fy);
    inline void Set(const _2nDs_Vector2D& vector);
........其他.....飘过.......
}

别的2nDs_Math.h
#include "Vector2D.h"
GLubyte isEdgeToEdgeIntersection(const _2nDs_Vector2D& A, const _2nDs_Vector2D& B, const _2nDs_Vector2D& C, const _2nDs_Vector2D& D, _2nDs_Vector2D* IntSecPoint);

2nDs_ Math.cpp

GLubyte isEdgeToEdgeIntersection(const _2nDs_Vector2D& A, const _2nDs_Vector2D& B, const _2nDs_Vector2D& C, const _2nDs_Vector2D& D, _2nDs_Vector2D* IntSecPoint)
{
.........
if (A.IsEqualTo(B)) IntSecPoint->Set(A);
.........
}



error LNK2019: unresolved external symbol "public: void __thiscall _2nDs_Vector2D::Set(struct _2nDs_Vector2D const &)" (?Set@_2nDs_Vector2D@@QAEXABU1@@Z) referenced in function "unsigned char __cdecl isEdgeToEdgeIntersection(struct _2nDs_Vector2D const &,struct _2nDs_Vector2D const &,struct _2nDs_Vector2D const &,struct _2nDs_Vector2D const &,struct _2nDs_Vector2D *)" (?isEdgeToEdgeIntersection@@YAEABU_2nDs_Vector2D@@000PAU1@@Z)    C:\Documents and Settings\secondsen\My Documents\Visual Studio 2010\Projects\2nDs_Engine\2nDs_Engine\2nDs_Maths.obj    2nDs_Engine

都是我自己写的，也包含了，LNK2019是怎么蹦出来的？


补充一下。。Set和IsEqualTo都报了LNK2019

shawind

_2nDs_Vector2D这个struct只有定义，没有实现么？

secondsen

有实现的，就是赋值 放在相应的cpp中，声明在.h中

secondsen

2nDs_Vector2D.h

1. #ifndef _2nDs_VECTOR2D_H_
2. #define _2nDs_VECTOR2D_H_
4. #include "2nDs_System.h"
6. struct _2nDs_Vector2D
7. {
8.     GLfloat x;
9.     GLfloat y;
11.     _2nDs_Vector2D(GLvoid):x(0), y(0){}
12.     _2nDs_Vector2D(GLfloat value):x(value), y(value){}
13.     _2nDs_Vector2D(GLfloat fx, GLfloat fy):x(fx), y(fy){}
14.     _2nDs_Vector2D(const float* values):x((*values)), y((*values)+1){}
15.     _2nDs_Vector2D(_2nDs_Vector2D& vector2D):x(vector2D.x), y(vector2D.y){}
16.     inline GLvoid Set(GLfloat fx, GLfloat fy);
17.     inline GLvoid Set(const _2nDs_Vector2D& vector);
18.     inline GLvoid LoadIdentity(GLvoid);
19.     inline GLvoid Normalize(GLvoid);
20.     inline GLvoid RotateDeg(GLfloat angle);
21.     inline GLvoid RotateRad(GLfloat angle);
22.     inline GLvoid GetNormalized(_2nDs_Vector2D& vector) const;
23.     inline GLvoid GetRotatedDeg(GLfloat angle, _2nDs_Vector2D& vector) const;
24.     inline GLvoid GetRotatedRad(GLfloat angle, _2nDs_Vector2D& vector) const;
25.     inline GLfloat GetLength() const;
26.     inline GLfloat GetSquaredLength() const;
27.     inline GLvoid Lerp(const _2nDs_Vector2D& src, GLfloat factor, _2nDs_Vector2D& dst);
28.     inline GLvoid IsSumOf(const _2nDs_Vector2D& vector1, const _2nDs_Vector2D& vector2);
29.     inline GLvoid IsDifferenceOf(const _2nDs_Vector2D& vector1, const _2nDs_Vector2D& vector2);
30.     inline GLvoid IsProductOf(const _2nDs_Vector2D& vector1, const _2nDs_Vector2D& vector2);
31.     inline GLvoid IsQuotientOf(const _2nDs_Vector2D& vector1, const _2nDs_Vector2D& vector2);
32.     inline GLvoid IsSumOf(const _2nDs_Vector2D& vector, const GLfloat value);
33.     inline GLvoid IsDifferenceOf(const _2nDs_Vector2D& vector, const GLfloat value);
34.     inline GLvoid IsProductOf(const _2nDs_Vector2D& vector, const GLfloat value);
35.     inline GLvoid IsQuotientOf(const _2nDs_Vector2D& vector, const GLfloat value);
36.     inline GLvoid Plus(const _2nDs_Vector2D& vector);
37.     inline GLvoid Subtract(const _2nDs_Vector2D& vector);
38.     inline GLvoid Multiply(const _2nDs_Vector2D& vector);
39.     inline GLvoid Divide(const _2nDs_Vector2D& vector);
40.     inline GLvoid Plus(const GLfloat value);
41.     inline GLvoid Subtract(const GLfloat value);
42.     inline GLvoid Multiply(const GLfloat value);
43.     inline GLvoid Divide(const GLfloat value);
44.     inline GLvoid Invert(_2nDs_Vector2D& vector);
45.     inline GLvoid Inverted(GLvoid);
46.     inline GLfloat DotMultiply(const _2nDs_Vector2D& vector);
47.     inline GLvoid CrossMultiply(const _2nDs_Vector2D& vector, _2nDs_Vector2D& Dst);
48.     inline GLboolean IsEqualTo(const _2nDs_Vector2D& vector) const;
49.     inline GLboolean IsUnequalTo(const _2nDs_Vector2D& vector) const;
50. };
52. #endif

复制代码

2nDs_Vector2D.cpp

1. #include "2nDs_Vector2D.h"
2. #include "2nDs_Maths.h"
4. inline GLvoid _2nDs_Vector2D::Set(GLfloat fx, GLfloat fy) {x = fx; y = fy;}
5. inline GLvoid _2nDs_Vector2D::Set(const _2nDs_Vector2D& vector) {x = vector.x; y = vector.y;}
6. inline GLvoid _2nDs_Vector2D::LoadIdentity(GLvoid) {x = 0.0f; y = 0.0f;}
8. inline GLvoid _2nDs_Vector2D::Normalize(GLvoid)
9. {
10.     GLfloat l = GetLength();
11.     if(l == 1 || l == 0) return;
12.     x /= l;
13.     y /= l;
14. }
16. 。。。。。。其他。。。。

复制代码

shawind

看不出来有什么明显的问题，如果编译出的目标文件里确实是有2nDs_Vector2D.obj的话，我猜可能是你的项目工程组织结构的问题吧。

同等专业的程序员来解惑。

secondsen

引用第4楼shawind于2012-09-14 08:42发表的  :
我猜可能是你的项目工程组织结构的问题吧。

组织结构是指？？包含来包含去的，弄得一团乱麻？？

shawind

引用第5楼secondsen于2012-09-14 09:19发表的  :
组织结构是指？？包含来包含去的，弄得一团乱麻？？
.......

是的，比如说，链接的时候link.exe没找到2nDs_Vector2D.obj。又或者有什么预定义不小心把2nDs_Vector2D.cpp里的实现给忽略过去了。不过，直接用IDE管理的项目，一般是不会出这种问题的。
你以用 dumpbin /SYMBOLS 2nDs_Vector2D.obj > 2nDs_Vector2D.txt
然后打开2nDs_Vector2D.txt看看里面有没有set等方法的符号，
如果有，就是你的link.exe找不到2nDs_Vector2D.obj文件。
如果没有，就是你的具体实现根本没有被编译出来。

secondsen

1. Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
2. Copyright (C) Microsoft Corporation.  All rights reserved.
5. Dump of file 2nDs_Vector2D.obj
7. File Type: COFF OBJECT
9. COFF SYMBOL TABLE
10. 000 00AB766F ABS    notype       Static       | @comp.id
11. 001 00000001 ABS    notype       Static       | @feat.00
12. 002 00000000 SECT1  notype       Static       | .drectve
13.     Section length   41, #relocs    0, #linenums    0, checksum        0
14.     Relocation CRC 00000000
15. 005 00000000 SECT2  notype       Static       | .debug$S
16.     Section length 1370, #relocs    0, #linenums    0, checksum        0
17.     Relocation CRC 00000000
18. 008 00000000 SECT3  notype       Static       | .debug$T
19.     Section length   94, #relocs    0, #linenums    0, checksum        0
20.     Relocation CRC 00000000
22. String Table Size = 0x0 bytes
24.   Summary
26.         1370 .debug$S
27.           94 .debug$T
28.           41 .drectve

复制代码

实现部分没有编译出来的意思？？

shawind

应该是这样了，从这个结果来看，2nDs_Vector2D.cpp的几乎像是空文件。
你查下，是不是有#define...这类的条件编译开关把具体代码给忽略过去了。

secondsen

感觉 略 崩溃