任何人都可以帮我配置Visual Studio 2005（如果这是解决问题的方法）。我正在使用一些外部库，我收到了这个错误：
1>Compiling...
1>main.cpp
1>c:\documents and settings\mz07\desktop\project\vs8test1\vs8test1\main.cpp(99) : warning C4996: 'getch' was declared deprecated
1> c:\program files\microsoft visual studio 8\vc\include\conio.h(145) : see declaration of 'getch'
1> Message: 'The POSIX name for this item is deprecated. Instead, use the ISO C++ conformant name: _getch. See online help for details.'
1>c:\documents and settings\mz07\desktop\project\vs8test1\vs8test1\main.cpp(110) : warning C4996: 'getch' was declared deprecated
1> c:\program files\microsoft visual studio 8\vc\include\conio.h(145) : see declaration of 'getch'
1> Message: 'The POSIX name for this item is deprecated. Instead, use the ISO C++ conformant name: _getch. See online help for details.'
1>c:\documents and settings\mz07\desktop\project\vs8test1\vs8test1\main.cpp(128) : warning C4996: 'getch' was declared deprecated
1> c:\program files\microsoft visual studio 8\vc\include\conio.h(145) : see declaration of 'getch'
1> Message: 'The POSIX name for this item is deprecated. Instead, use the ISO C++ conformant name: _getch. See online help for details.'
1>Compiling manifest to resources...
1>Linking...
1>hdu.lib(hduError.obj) : error LNK2019: unresolved external symbol "__declspec(dllimport) class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::operator<<(class std::basic_ostream<char,struct std::char_traits<char> > &,char const *)" (__imp_??6std@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@0@AAV10@PBD@Z) referenced in function "class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl operator<<(class std::basic_ostream<char,struct std::char_traits<char> > &,struct HDErrorInfo const &)" (??6@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@AAV01@ABUHDErrorInfo@@@Z)
1>C:\Documents and Settings\mz07\Desktop\project\vs8Test1\Debug\vs8Test1.exe : fatal error LNK1120: 1 unresolved externals
我一直在Google上搜索数小时。请知，stackoverflow是我最后的希望！
抱歉，我忘了提供代码：
#include "atl/stdafx.h"
#include <cstdio>
#include <cassert>
#if defined(WIN32)
# include <conio.h>
#else
# include "conio.h"
#endif
#include <HD/hd.h>
#include <HDU/hduVector.h>
#include <HDU/hduError.h>
#pragma comment(lib, "hdu.lib")
#pragma comment(lib, "hlu.lib")
#pragma comment(lib, "hd.lib")
#pragma comment(lib, "hl.lib")
/*******************************************************************************
Haptic sphere callback.
The sphere is oriented at 0,0,0 with radius 40, and provides a repelling force
if the device attempts to penetrate through it.
*******************************************************************************/
HDCallbackCode HDCALLBACK FrictionlessSphereCallback(void *data)
{
const double sphereRadius = 40.0;
const hduVector3Dd spherePosition(0,0,0);
// Stiffness, i.e. k value, of the sphere. Higher stiffness results
// in a harder surface.
const double sphereStiffness = .25;
hdBeginFrame(hdGetCurrentDevice());
// Get the position of the device.
hduVector3Dd position;
hdGetDoublev(HD_CURRENT_POSITION, position);
// Find the distance between the device and the center of the
// sphere.
double distance = (position-spherePosition).magnitude();
// If the user is within the sphere -- i.e. if the distance from the user to
// the center of the sphere is less than the sphere radius -- then the user
// is penetrating the sphere and a force should be commanded to repel him
// towards the surface.
if (distance < sphereRadius)
{
// Calculate the penetration distance.
double penetrationDistance = sphereRadius-distance;
// Create a unit vector in the direction of the force, this will always
// be outward from the center of the sphere through the user's
// position.
hduVector3Dd forceDirection = (position-spherePosition)/distance;
// Use F=kx to create a force vector that is away from the center of
// the sphere and proportional to the penetration distance, and scsaled
// by the object stiffness.
// Hooke's law explicitly:
double k = sphereStiffness;
hduVector3Dd x = penetrationDistance*forceDirection;
hduVector3Dd f = k*x;
hdSetDoublev(HD_CURRENT_FORCE, f);
}
hdEndFrame(hdGetCurrentDevice());
HDErrorInfo error;
if (HD_DEVICE_ERROR(error = hdGetError()))
{
hduPrintError(stderr, &error, "Error during main scheduler callback\n");
if (hduIsSchedulerError(&error))
{
return HD_CALLBACK_DONE;
}
}
return HD_CALLBACK_CONTINUE;
}
/******************************************************************************
main function
Initializes the device, creates a callback to handle sphere forces, terminates
upon key press.
******************************************************************************/
int main(int argc, char* argv[])
{
HDErrorInfo error;
// Initialize the default haptic device.
HHD hHD = hdInitDevice(HD_DEFAULT_DEVICE);
if (HD_DEVICE_ERROR(error = hdGetError()))
{
hduPrintError(stderr, &error, "Failed to initialize haptic device");
fprintf(stderr, "\nPress any key to quit.\n");
getch();
return -1;
}
// Start the servo scheduler and enable forces.
hdEnable(HD_FORCE_OUTPUT);
hdStartScheduler();
if (HD_DEVICE_ERROR(error = hdGetError()))
{
hduPrintError(stderr, &error, "Failed to start scheduler");
fprintf(stderr, "\nPress any key to quit.\n");
getch();
return -1;
}
// Application loop - schedule our call to the main callback.
HDSchedulerHandle hSphereCallback = hdScheduleAsynchronous(
FrictionlessSphereCallback, 0, HD_DEFAULT_SCHEDULER_PRIORITY);
printf("Sphere example.\n");
printf("Move the device around to feel a frictionless sphere\n\n");
printf("Press any key to quit.\n\n");
while (!_kbhit())
{
if (!hdWaitForCompletion(hSphereCallback, HD_WAIT_CHECK_STATUS))
{
fprintf(stderr, "\nThe main scheduler callback has exited\n");
fprintf(stderr, "\nPress any key to quit.\n");
getch();
break;
}
}
// For cleanup, unschedule our callbacks and stop the servo loop.
hdStopScheduler();
hdUnschedule(hSphereCallback);
hdDisableDevice(hHD);
return 0;
}
答案 0 :(得分：2)
我认为您导入的库（hdu.lib）是使用不同的运行时库构建的 - 要么是在这里混合调试版本，要么是静态版本与DLL运行时混合。
答案 1 :(得分：0)
在我看来，你并没有在C ++库中链接。如果右键单击项目的“属性”，并选中配置属性 - ＆gt;链接器 - ＆gt;输入，你的“附加依赖”行是否包含“libcpmt.lib”？
答案 2 :(得分：0)
如果您可以发布链接器正在运行的命令行开关，那将是有帮助的，我的意思是完整的命令。
看起来这个hdu libarary依赖于C ++ iostream库，可以检查链接器设置是否指定了iostream库。