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5400 discussions

Re: function-identifier-variable
by Waldek Hebisch 29 Mar '16

29 Mar '16

Paul Isaacs wrote: > > > Waldek, Professor, > > Thank you for the replies. > > "A pointer-function shall be a function-access possessing : a pointer-type." > > Howvever, I can't see how to generate a function-access possessing a > pointer-type: Just declare apropriate return type. Useful example would be complicated, but a useless one is: program pb; type pb = ^boolean; var pv : pb; function y : pb; begin y := pv end; {Main program} begin new(pv); pv^ := true; {Use y} if y^ then writeln("OK") end . -- Waldek Hebisch

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function-identifier-variable
by Paul Isaacs 28 Mar '16

28 Mar '16

Hello; program test; { productions: assignment-statement : contains expression expression : contains simple-expression simple-expression : eventually works down to primary primary : contains variable-access variable-access : contains function-identifier-variable function-identifier-variable = pointer-function '^' pointer-function : contains entire-function-access entire-function-access = function-designator function-designator = function-name [ actual-parameter-list ] function-name : contains identifier } { compiled with: $PASCAL/local/bin/gpc --extended-pascal test.pas test.pas: In main program: test.pas:11: error: invalid type of argument of `^' } function y : boolean; begin y := false; end; var x : boolean; begin x := y^; { isn't " y" a function-identifier-variable ? } end. Where is the error in thinking? Thanks, Paul Isaacs

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compiling gcc-3.4.4
by Paul Isaacs 20 Mar '16

20 Mar '16

Hello, For what its worth: To overcome an error compiling unwind-dw2, Instances of "struct siginfo" have to be changed to "siginfo_t" in gcc-3.4.4/gcc/config/i386/linux.h Regards, Paul Isaacs

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Compiling
by Paul Isaacs 20 Mar '16

20 Mar '16

Hello, running: 3.16.0-4-686-pae GNU/Linux Trying to compile: downloaded gpc-20060325 gcc-3.4.4 did: ------------ Solved: Not finding includes in /usr/include/i386-linux-gnu Regards, Paul Isaacs

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Compiling
by Paul Isaacs 19 Mar '16

19 Mar '16

Hello, running: 3.16.0-4-686-pae GNU/Linux Trying to compile: downloaded gpc-20060325 gcc-3.4.4 did: moved p dir to gcc-3.4.4/gcc cd gcc-3.4.4 ( did not use build directory to keep things simple ) ./configure --prefix=/home/Downloads --enable-languages=pascal make got : after responding to patch request checking how to run the C preprocessor... /lib/cpp checking for inline... inline checking for long long int... yes checking for __int64... no checking for built-in _Bool... yes checking size of void *... configure: error: cannot determine a size for void * Makefile:23329: recipe for target 'configure-gcc' failed make: *** [configure-gcc] Error 1 Internet search not helpful. any ideas? Thanks, Paul Isaacs

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more gpc bootstrapping errors
by Treutwein Bernhard 18 Mar '16

18 Mar '16

thanks for the feedback until now. I reverted back to texinfo 4.13 from the TinyCore 4.x repostitory I completely removed my working directory and started from the scratch. Now the info files are generated, but I'm still getting errors, this time the errors are more obscure to me. In file included from ../gcc-3.4.6/gcc/gcov-io.h:240, from ../gcc-3.4.6/gcc/libgcov.c:51: ./auto-host.h:188:1: warning: "HAVE_DECL_GETOPT" redefined In file included from ../gcc-3.4.6/gcc/libgcov.c:37: ../gcc-3.4.6/gcc/tsystem.h:40:1: warning: this is the location of the previous definition rm -rf ./libgcov.a ar rc ./libgcov.a libgcc/./_gcov.o libgcc/./_gcov_merge_add.o libgcc/./_gcov_merge_single.o libgcc/./_gcov_merge_delta.o ranlib ./libgcov.a /mnt/sda5/TeX-GPC/GPC/work/gcc/xgcc -B/mnt/sda5/TeX-GPC/GPC/work/gcc/ -B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/ -isystem /usr/local/i686-pc-linux-gnu/include -isystem /usr/local/i686-pc-linux-gnu/sys-include -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../gcc-3.4.6/gcc -I../gcc-3.4.6/gcc/. -I../gcc-3.4.6/gcc/../include -fexceptions -c ../gcc-3.4.6/gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o ../gcc-3.4.6/gcc/unwind-dw2.c: In function `uw_frame_state_for': ../gcc-3.4.6/gcc/unwind-dw2.c:1031: error: field `info' has incomplete type libgcc.mk:122: recipe for target 'libgcc/./unwind-dw2.o' failed make[2]: *** [libgcc/./unwind-dw2.o] Error 1 make[2]: Leaving directory '/mnt/sda5/TeX-GPC/GPC/work/gcc' Makefile:1228: recipe for target 'libgcc.a' failed make[1]: *** [libgcc.a] Error 2 make[1]: Leaving directory '/mnt/sda5/TeX-GPC/GPC/work/gcc' Makefile:23375: recipe for target 'all-gcc' failed make: *** [all-gcc] Error 2 Should I try to revert back also gcc? Which version would be preferred? I am currently using TinyCore 7, in version 6, there was gcc-4.9.1, version 5 had 4.7.2 and version 4 had 4.6.1. I don't really know what happens if I mix development tools from different version, but apparently most required tools are packaged in one pseudo-package. Here are the versions of the different tools I used this time: makeinfo (GNU texinfo) 4.13. gcc (GCC) 5.2.0 GNU bash, version 4.3.39(1)-release (i486-pc-linux-gnu) bzip2, a block-sorting file compressor. Version 1.0.6, 6-Sept-2010. sed (GNU sed) 4.2.2 GNU Awk 4.1.3, API: 1.1 (GNU MPFR 3.1.3-p4, GNU MP 6.0.0) m4 (GNU M4) 1.4.17 bison (GNU Bison) 3.0.4 flex 2.5.39 autoconf (GNU Autoconf) 2.69 GNU help2man 1.46.1 Regards and thanks in advance for any help -- Bernhard Treutwein

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gp file not found
by Paul Isaacs 15 Mar '16

15 Mar '16

Hello, I have installed gp using: make prefix=$PASCAL/local CFLAGS=-I/usr/include/i386-linux-gnu install and adding $PASCAL/local/bin to PATH gp --version reports "GP version 0.61" However gp x.pas results in "x.pas: file not found" At line 2643 in gp.pas the error message literal is "file not found". The ":" after the file name is must be from MainSrcBase If I place two source files on the command line the expected error occurs. I am using Q4OS linux and the source file is present when I do an "ls". What am I doing wrong? Thanks, Paul Isaacs

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Variable length argument types for libusb binding
by Paul Isaacs 15 Mar '16

15 Mar '16

Hello, I have written a gnu pascal binding for libusb. I would like to improve it by using schemata for the various variable length libusb function arguments. I can come close by generating the USB arg pointer dynamically as follows: UsbArgPtr := UsbPtr( addr( ArraySchemata[ 1 ] ) ) to generate a pointer to the array within the schemata. This process can be hidden within the thick binding but not the thin binding. I would like to be able to declare a type that points to this address for use as an argument type in the binding functions. Is this possible? Do schemata have other attributes as well as .Size that could be used? Thanks, Paul Isaacs

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Re: Trapping RTS faults
by Paul Isaacs 15 Mar '16

15 Mar '16

On 14/03/16 03:49 PM, Gale Paeper wrote: > Adriaan has two links for downloading the Mac OS X tuned GPC build > from source code packages. Hello Gale, Finally clued that HFS was a compressed file. I will attempt to apply the patch to the gcc version but it may be above my pay grade. Thanks, Paul Isaacs

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Trapping RTS faults
by Paul Isaacs 14 Mar '16

14 Mar '16

Hello, The Trap unit traps system faults but does not seem to catch RTS errors ( index out of range, etc. ). Is there a way to trap RTS faults so that something like ncurses can be closed down properly? Thanks, Paul Isaacs

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