Gpc

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5400 discussions

Variant record constants
by Frank Heckenbach 27 Feb '05

27 Feb '05

I noticed that GPC allows non-constants in variant record lists which neither EP nor BP support. As it would cause additional difficulties when fixing Emil's test program and perhaps elsewhere, and I can't see much use for it, the attached patch forbids it. program fjf1028a (Output); var a: Integer value 1; type t = record case Integer of a: (b: Integer) { WRONG } end; begin end. program fjf1028b (Output); type t (a: Integer) = record case Integer of a:… [View More]

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warning: Operand with side-effects is not evaluated.
by Igor Marnat 25 Feb '05

25 Feb '05

Hello List! I've successfully built latest version with the same results of test suite like other people already have written. Range-checking is a really cool (great thanks to developers:))! It appears now new warning that I didn't see before (warning: Operand with side-effects is not evaluated). It isn't described in the documentation. It points to strings that look like: LocalVariable := GlobalVariable mod GlobalConst; Can I do something to avoid it? What does it mean? It means that the … [View More]

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Compile prob. with gpc20050217
by Wood David 25 Feb '05

25 Feb '05

I'm getting a new compile time error (error: arithmetical overflow ) with this previously ok bit of code: FOR I := -Clutter_max_width TO Clutter_max_width DO Spectral_purity[I] := Spec_purity_level / (1 + (SQR(I) / Width_sqrd)); Spectral_purity[0] := 1; All the variables and arrays use type double, except i which is an integer. The error is reported at the last code line, but I guess it may stem from the previous line. I don't understand why gpc … [View More]

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Test results og gpc-20041218 with gcc-3.3.5 for DJGPP
by Andris Pavenis 25 Feb '05

25 Feb '05

Here are test results of gpc-20041218 with gcc-3.3.5 for DJGPP (I used recent CVS version DJGPP v2.04) gpc 20041218, based on gcc-3.3.5, flags: -g -O3 -W -Wall -Wno-unused GPC-TEST-BEGIN ========================== TEST aregextest.pas: SKIPPED: librx not installed TEST fjf165a.pas: SKIPPED: German locale not installed TEST longr2.pas: SKIPPED: no LongReal math routines available TEST reset.pas: failed TEST y2k.pas: failed 2005 2005 ========================== … [View More]

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Bug report for gpc 20050217
by Wood David 25 Feb '05

25 Feb '05

Following on from my earlier runtime arithmetical error report, see attached code. It appears that gpc20050217 doesn't like the use of a constant index in an array assignment within a procedure. It's fine when the same assignment is done with a constant index in the main program. I'm running gpc20050217 (patched with gpc.diff-uc) under gcc.3.4.2 in FC3 Linux on a P4 processor. Regards David. The Information contained in this E-Mail and any subsequent correspondence is private and is … [View More]

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Re: Compile prob. with gpc20050217
by Wood David 24 Feb '05

24 Feb '05

Apologies for the limited code detail earlier. It appears the offending bit is the use of a constant array index. Here is a short program which reproduces the bug: PROGRAM arr_test(input,output); TYPE arrtype = ARRAY [-10..10] OF double; VAR test : arrtype; PROCEDURE init(VAR arr: arrtype); VAR i : integer; BEGIN FOR i:= -10 TO 10 DO arr[i]:= i*2.0; i:= 0; arr[i]:= 1.0; { This is OK, using i for the index } arr[0]:= 1.0; { This causes an arithmetical error at compile … [View More]

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Re: gpc-20050217 failing this test
by Wood David 24 Feb '05

24 Feb '05

Thanks Frank. I can confirm that this patch (gpc.diff-uc) fixed the out of range error. David. > -----Original Message----- > From: gpc-owner(a)gnu.de [mailto:gpc-owner@gnu.de <mailto:gpc-owner@gnu.de> ] On Behalf Of Frank > Heckenbach > Sent: 22 February 2005 15:59 > To: gpc(a)gnu.de > Subject: Re: gpc-20050217 failing this test > > Wood David wrote: > > > Here is a very short program which now fails with a value out of range > > error: > &… [View More]

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where could I get latest patches for gpc
by Igor Marnat 24 Feb '05

24 Feb '05

Hi, List! Latest version of GPC has some bugs and there are some patches available already. Does there exists any url to get these patches (or the latest one, "cumulative")? Sometimes it's not very comfortly to search them in the mailing list. Am I missed something and such a place already exists at www.gnu-pascal.de? If no, it would be nice to have such a place nearby GPC release. Regards, Igor Marnat marny(a)rambler.ru

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Building on Mac OS X
by Adriaan van Os 24 Feb '05

24 Feb '05

Frank Heckenbach wrote: > - Bison (building GPC) > > Bison version 2.0 has been released. It can be obtained at > <ftp://ftp.gnu.org/gnu/bison/bison-2.0.tar.gz>. This is now the > recommended version for all GPC compilations. Fortunately, we now > don't depend on changing alpha/beta versions of bison anymore. > Bison is required when building a minimal distribution of GPC > (which now doesn't include the Bison generated files anymore, as > it did … [View More]temporarily); when building a full source distribution and > not modifying the bison input files (*.y), bison is not strictly > needed, but in case of doubt, it can't hurt to install the new > bison version. I am adding a few notes about building on Mac OS X. The following tools may be needed: - bison 2.0 a too old version is installed with XCode or OS X <ftp://ftp.gnu.org/gnu/bison/bison-2.0.tar.gz> - sed 4.0.x a too old version is installed with XCode or OS X (I use 4.0.5, but I assume later versions work also) <ftp://ftp.gnu.org/gnu/sed/> - flex 2.5.27 a too old version is installed with XCode or OS X <http://sourceforge.net/project/showfiles.php?group_id=72099> - help2man 1.35 not installed with XCode or OS X <ftp://ftp.gnu.org/gnu/help2man/help2man-1.35.1.tar.gz> Configure these tools with --prefix=/usr, configure help2man with --prefix=/usr --enable-nls=no There is a bug in Mac OS X that causes problems when configuring flex and other tools (see e.g.<http://lists.gnu.org/archive/html/bug-coreutils/2004-08/ msg00039.html>). The system call sysctl ((int[]) {CTL_HW, HW_MACHINE_ARCH}, 2, buffer, &bufsize, 0, 0) returns a negative number, which causes the coreutils command "uname -p" to report "unknown". This confuses config.guess. To solve the flex configure problem, apply the following patch to the flex 2.5.27 sources: --- config.guess.orig Fri Feb 18 21:22:32 2005 +++ config.guess Fri Feb 18 21:25:28 2005 @@ -1098,7 +1098,7 @@ EOF echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} exit 0 ;; *:Darwin:*:*) - echo `uname -p`-apple-darwin${UNAME_RELEASE} + echo powerpc-apple-darwin${UNAME_RELEASE} exit 0 ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` WIth the right tools in place, build the gpc compiler with "make bootstrap" instead of "make". This is necessary because of peculiarities of the apple-gcc system compiler. The alternative is to bootstrap an fsf-gcc compiler on your system first and then use that fsf-gcc compiler for successive builds of gpc (and other gnu packages). Then, successive builds will be faster, because a bootstrap is not needed. Regards, Adriaan van Os [View Less]

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gpc-20050217 failing this test
by Wood David 22 Feb '05

22 Feb '05

Here is a very short program which now fails with a value out of range error: PROGRAM dyn_arr_test(input,output); TYPE Dyn_arr2( Max_index1, Max_index2 : INTEGER ) = ARRAY [1..Max_index1, 1..Max_index2] OF single; Ptr_to_dyn_arr2 = ^Dyn_arr2; VAR test2 : Ptr_to_dyn_arr2; BEGIN new(test2, 181, 181); writeln('This works'); new(test2, 182, 182); writeln('This works'); new(test2, 183, 183); writeln('This fails'); dispose(test2); END. … [View More]

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