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From: meenal on 1 Dec 2008 01:31
Hi all ,
I am using the fillowing function to build the glut.dll ..


int gettimeofday(struct timeval* tp, void* tzp)
{
struct timeb tb;

ftime(&tb);
tp->tv_sec = tb.time;
tp->tv_usec = tb.millitm * 1000;

/* 0 indicates that the call succeeded. */
return 0;
}

when i build the workspace i get the fillowing error
>win32_util.obj : error LNK2019: unresolved external symbol __imp___ftime64@4 referenced in function _ftime@4
1>Debug/GLUT32.DLL : fatal error LNK1120: 1 unresolved externals

Can you please help me to remove the errors.

regards,
Meenal
From: KoushalVV on 1 Dec 2008 02:59
have u included time.h or the related header file in u r cpp file?

"meenal" wrote:

> Hi all ,
> I am using the fillowing function to build the glut.dll ..
>
>
> int gettimeofday(struct timeval* tp, void* tzp)
> {
> struct timeb tb;
>
> ftime(&tb);
> tp->tv_sec = tb.time;
> tp->tv_usec = tb.millitm * 1000;
>
> /* 0 indicates that the call succeeded. */
> return 0;
> }
>
> when i build the workspace i get the fillowing error
> >win32_util.obj : error LNK2019: unresolved external symbol __imp___ftime64@4 referenced in function _ftime@4
> 1>Debug/GLUT32.DLL : fatal error LNK1120: 1 unresolved externals
>
> Can you please help me to remove the errors.
>
> regards,
> Meenal
>
From: meenal on 1 Dec 2008 03:34
yes i have included "sys/timeb.h"
regards,
meenal
From: Giovanni Dicanio on 1 Dec 2008 05:31
Hi,

I downloaded GLUT Win32 port from his author's page:

http://www.xmission.com/~nate/glut.html

The actual link to source code is this:

http://www.xmission.com/~nate/glut/glut-3.7.6-src.zip

This library seems to me written using VC6 (it's a pure C library).
I tried building it with my copy of VC6 with SP6 and it built fine (no error
occurred).

Note that the function that gives you error has a different definition in
the source code I downloaded from the aforementioned link.

In fact, in file "win32_util.c" the body of the gettimeofday function is
this:

<code>

int
gettimeofday(struct timeval* tp, void* tzp)
{
LARGE_INTEGER t;

if(QueryPerformanceCounter(&t)) {
/* hardware supports a performance counter */
LARGE_INTEGER f;
QueryPerformanceFrequency(&f);
tp->tv_sec = t.QuadPart/f.QuadPart;
tp->tv_usec = ((float)t.QuadPart/f.QuadPart*1000*1000) -
(tp->tv_sec*1000*1000);
} else {
/* hardware doesn't support a performance counter,
so get the time in a more traditional way. */
DWORD t;
t = timeGetTime();
tp->tv_sec = t / 1000;
tp->tv_usec = t % 1000;
}

/* 0 indicates that the call succeeded. */
return 0;
}

</code>

and it compiles fine, as the whole GLUT library.

Are you sure that you downloaded the Win32 port of GLUT?
(And not some Unix/Linux version ?)

Giovanni



"meenal" <meenaldgupta(a)gmail.com> ha scritto nel messaggio
news:ac2a898e-c058-4a91-916a-419904918267(a)o40g2000prn.googlegroups.com...
> Hi all ,
> I am using the fillowing function to build the glut.dll ..
>
>
> int gettimeofday(struct timeval* tp, void* tzp)
> {
> struct timeb tb;
>
> ftime(&tb);
> tp->tv_sec = tb.time;
> tp->tv_usec = tb.millitm * 1000;
>
> /* 0 indicates that the call succeeded. */
> return 0;
> }
>
> when i build the workspace i get the fillowing error
>>win32_util.obj : error LNK2019: unresolved external symbol
>>__imp___ftime64@4 referenced in function _ftime@4
> 1>Debug/GLUT32.DLL : fatal error LNK1120: 1 unresolved externals
>
> Can you please help me to remove the errors.
>
> regards,
> Meenal


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