RE: [Flightgear-devel] Error in SGMisc class? I don't see it ...
Here's the offensive code in /usr/local/include/simgear/math/SGMisc.hxx === start === static T min(const T a, const T b) === end === The last line, above, is the culprit. As before, the errors are: SGMisc.hxx:28: error: expected unqualified-id before const SGMisc.hxx:28: error: expected `)' before const SGMisc.hxx:28: error: expected `)' before const The rest of the errors (lots of them), likewise involve min. Jon It is a handy and typesafe way to program a min or max function. You know exactly what type the input arguments are and which the output arguments are. ... What brakes, but that brakes anyway if you do includes in the wrong order, is that a prevously defined min/max macro will disturb the declaration/implementation of the SGMisc min/max as it would disturb that for every other min/max declaration/implementation like the std::min/std::max functions for example too. I bet that you defined such a macro and past that include SGMath.h Mathias I know what the min() template definition does - and it looks like a really good idea. However, the code from plib, simgear, and flightgear is all straight from CVS. I looked at the tests/ subdirectory and examined the headers. I renamed the JSBSim subdirectory. The test-up code still won't compile, and gives the same error. Again - this is straight from CVS. Some of the other code in test-up/ does compile. I'm working under CygWin, but I don't think this should have any effect. Jon --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
RE: [Flightgear-devel] Error in SGMisc class? I don't see it ...
You need to make sure to #define NOMINMAX or else windows.h includes conflicting stuff -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jon S. Berndt Sent: Monday, February 27, 2006 7:57 AM To: flightgear-devel@lists.sourceforge.net Subject: RE: [Flightgear-devel] Error in SGMisc class? I don't see it ... Here's the offensive code in /usr/local/include/simgear/math/SGMisc.hxx === start === static T min(const T a, const T b) === end === The last line, above, is the culprit. As before, the errors are: SGMisc.hxx:28: error: expected unqualified-id before const SGMisc.hxx:28: error: expected `)' before const SGMisc.hxx:28: error: expected `)' before const The rest of the errors (lots of them), likewise involve min. Jon It is a handy and typesafe way to program a min or max function. You know exactly what type the input arguments are and which the output arguments are. ... What brakes, but that brakes anyway if you do includes in the wrong order, is that a prevously defined min/max macro will disturb the declaration/implementation of the SGMisc min/max as it would disturb that for every other min/max declaration/implementation like the std::min/std::max functions for example too. I bet that you defined such a macro and past that include SGMath.h Mathias I know what the min() template definition does - and it looks like a really good idea. However, the code from plib, simgear, and flightgear is all straight from CVS. I looked at the tests/ subdirectory and examined the headers. I renamed the JSBSim subdirectory. The test-up code still won't compile, and gives the same error. Again - this is straight from CVS. Some of the other code in test-up/ does compile. I'm working under CygWin, but I don't think this should have any effect. Jon --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Error in SGMisc class? I don't see it ...
On Monday 27 February 2006 04:44, Jon S. Berndt wrote:
Stupid me. I worded the problem incorrectly. Obviously, the
problem is with
a compile of the FlightGear test program, with the definition or use of
min.
Here's the offensive code in /usr/local/include/simgear/math/SGMisc.hxx
=== start ===
#ifndef SGMisc_H
#define SGMisc_H
#include cmath
templatetypename T
class SGMisc {
public:
static T pi() { return T(3.1415926535897932384626433832795029L); }
static T min(const T a, const T b)
=== end ===
The last line, above, is the culprit. As before, the errors are:
SGMisc.hxx:28: error: expected unqualified-id before const
SGMisc.hxx:28: error: expected `)' before const
SGMisc.hxx:28: error: expected `)' before const
The rest of the errors (lots of them), likewise involve min.
Jon
P.S. What is the test-up application, anyhow? Can we avoid compiling that?
Or, is it needed?
Yes it is needed and used.
It is a handy and typesafe way to program a min or max function.
You know exactly what type the input arguments are and which the output
arguments are.
What you can do when you want a float max is
SFMiscfloat::max(b, a)
You don't get ambiguities and you dont get whatever min/max is defined in the
global namespace you dont know about which types are used when it is really
defined.
What brakes, but that brakes anyway if you do includes in the wrong order, is
that a prevously defined min/max macro will disturb the
declaration/implementation of the SGMisc min/max as it would disturb that for
every other min/max declaration/implementation like the std::min/std::max
functions for example too.
I bet that you defined such a macro and past that include SGMath.h
Greetings
Mathias
--
Mathias Fröhlich, email: [EMAIL PROTECTED]
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