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Love, Life and Linux

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There are 10 people in this world, those who understand binary and those who dont.

www.troychurchofchrist.org/guatemala/js/CCN/VC++prob.html

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Love, Life and Linux

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Love, Life and Linux

quote:

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Originally posted by CPUFreak91:
.. except a simple program with only <studio.h> ..

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If your output window is closed you might have to enable it from the View menu option.

quote:

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Originally posted by CPUFreak91:
I don't know what erors i receive.

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Can you copy/paste the errors into a post so we can see them?

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Brian

/*
* @(#)linker_md.c 1.9 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/

/*
* Maintains a list of currently loaded DLLs (Dynamic Link Libraries)
* and their associated handles. Library names are case-insensitive.
*/

#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#include "sys.h"

#include "path_md.h"

/*
* From system_md.c v1.54
*/
int
dbgsysGetLastErrorString(char *buf, int len)
{
long errval;

if ((errval = GetLastError()) != 0) {
/* DOS error */
int n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, errval,
0, buf, len, NULL);
if (n > 3) {
/* Drop final '.', CR, LF */
if (buf[n - 1] == '\n') n--;
if (buf[n - 1] == '\r') n--;
if (buf[n - 1] == '.') n--;
buf[n] = '\0';
}
return n;
}

if (errno != 0) {
/* C runtime error that has no corresponding DOS error code */
const char *s = strerror(errno);
int n = strlen(s);
if (n >= len) n = len - 1;
strncpy(buf, s, n);
buf[n] = '\0';
return n;
}

return 0;
}

/*
* Rest Adapted from JDK1.2 linker_md.c 1.43 98/09/28
*/

/*
* create a string for the JNI native function name by adding the
* appropriate decorations.
*
* On Win32, "__stdcall" functions are exported differently, depending
* on the compiler. In MSVC 4.0, they are decorated with a "_" in the
* beginning, and @nnn in the end, where nnn is the number of bytes in
* the arguments (in decimal). Borland C++ exports undecorated names.
*
* dbgsysBuildFunName handles different encodings depending on the value
* of encodingIndex. It returns 0 when handed an out-of-range
* encodingIndex.
*/
int
dbgsysBuildFunName(char *name, int nameMax, int args_size, int encodingIndex)
{
if (encodingIndex == 0) {
/* For Microsoft MSVC 4.0 */
char suffix[6]; /* This is enough since Java never has more than
256 words of arguments. */
int nameLen;
int i;

sprintf(suffix, "@%d", args_size * 4);

nameLen = strlen(name);
if (nameLen >= nameMax - 7)
return 1;
for(i = nameLen; i > 0; i--)
name[i] = name[i-1];
name[0] = '_';

sprintf(name + nameLen + 1, "%s", suffix);
return 1;
} else if (encodingIndex == 1)
/* For Borland, etc. */
return 1;
else
return 0;
}

/*
* Build a machine dependent library name out of a path and file name.
*/
void
dbgsysBuildLibName(char *holder, int holderlen, char *pname, char *fname)
{
const int pnamelen = pname ? strlen(pname) : 0;
const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0;
char *suffix;

#ifdef DEBUG
suffix = "_g";
#else
suffix = "";
#endif

/* Quietly truncates on buffer overflow. Should be an error. */
if (pnamelen + strlen(fname) + 10 > (unsigned int)holderlen) {
*holder = '\0';
return;
}

if (pnamelen == 0) {
sprintf(holder, "%s%s.dll", fname, suffix);
} else if (c == ':' || c == '\\') {
sprintf(holder, "%s%s%s.dll", pname, fname, suffix);
} else {
sprintf(holder, "%s\\%s%s.dll", pname, fname, suffix);
}
}

void *
dbgsysLoadLibrary(const char * name, char *err_buf, int err_buflen)
{
void *result = LoadLibrary(name);
if (result == NULL) {
/* Error message is pretty lame, try to make a better guess. */
long errcode = GetLastError();
if (errcode == ERROR_MOD_NOT_FOUND) {
strncpy(err_buf, "Can't find dependent libraries", err_buflen-2);
err_buf[err_buflen-1] = '\0';
} else {
dbgsysGetLastErrorString(err_buf, err_buflen);
}
}
return result;
}

void dbgsysUnloadLibrary(void *handle)
{
FreeLibrary(handle);
}

void * dbgsysFindLibraryEntry(void *handle, const char *name)
{
return GetProcAddress(handle, name);
}

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Love, Life and Linux

--------------------Configuration: linker_md - Win32 Debug--------------------
Compiling...
linker_md.c
f:\documents and settings\joseph quigley\desktop\new folder\linker_md.c(18) : fatal error C1083: Cannot open include file: 'sys.h': No such file or directory
Error executing cl.exe.

linker_md.obj - 1 error(s), 0 warning(s)

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Love, Life and Linux

- comment out #include "sys.h"
- comment out #include "path_md.h"
- near the end, change the line
FreeLibrary(handle);
to
FreeLibrary((HINSTANCE)handle);
- near the end, change the line
return GetProcAddress(handle, name);
to
return GetProcAddress((HINSTANCE)handle, name);
- add a main function if you haven't done so already, like this:
int main()
{
return 0;
}

This code looks like it's for managing the loading of .dlls. Is this some sample code you were just trying to compile, or is there a reason you need this particular code to build in VC6?

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Brian

quote:

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Originally posted by BrianT:

This code looks like it's for managing the loading of .dlls. Is this some sample code you were just trying to compile, or is there a reason you need this particular code to build in VC6?

[/B]

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Yes the reason is that i'm building J2se (Java thing). So I didn't write it.

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Love, Life and Linux

I guess they don't want to make it too easy since you are compiling your own version of their java machine!

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I dont like siggys. They are to hard to think up :(

quote:

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Originally posted by Goop2:
Must be nice seeing a bunch of garble and knowing what it means *sigh*

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It's just a matter of learning the basic syntax. But I know what you mean - I feel the same way when I look at Perl and other languages.

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Brian

So would removing all the includes really help, or really mess things up?

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Love, Life and Linux