Message-ID: <369BD204.4C3E3AD2@gmx.net>
Date: Tue, 12 Jan 1999 21:51:48 -0100
From: Robert Hoehne <robert DOT hoehne AT gmx DOT net>
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To: DJGPP Mailing list <djgpp AT delorie DOT com>
Subject: Bug when printing long doubles
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Reply-To: djgpp AT delorie DOT com

I haven't the time to seach deeper for that bug, so
I thought that I report it.

Here at first the test program
---file pr.c--------------------------------------------------
#include <stdio.h>

int main()
{
  char buf[100];
  unsigned char i[10] = {
    0x13,
    0x22,
    0xf7,
    0xfc,
    0x2f,
    0x3e,
    0x28,
    0x6f,
    0x3a,
    0xa3 };
  sprintf(buf, "%*.17LG", 16, *((long double *)i));
  fprintf(stderr, "%s\n", buf);
  return 0;
}
--end of pr.c-----------------------------------------------------


the program was build with

gcc -o pr.exe pr.c doprnt.c -g

(where doprnt.c is from the DJGPP 2.02 libc sources)

and here now the traceback:

O:\RHIDE\TEST>pr
Exiting due to signal SIGSEGV
General Protection Fault at eip=00003490
eax=00000030 ebx=00008355 ecx=0008e974 edx=3008e9f6 esi=00000054 edi=0008fdd6
ebp=0008e9fc esp=0008e984 program=F:\OBJ\RHIDE\TEST\PR.EXE
cs: sel=00a7  base=83557000  limit=0009ffff
ds: sel=00b7  base=83557000  limit=0009ffff
es: sel=00b7  base=83557000  limit=0009ffff
fs: sel=0087  base=0000d5e0  limit=0000ffff
gs: sel=00c7  base=00000000  limit=0010ffff
ss: sel=00b7  base=83557000  limit=0009ffff
App stack: [0008ff08..0000ff08]  Exceptn stack: [0000fdf0..0000deb0]
 
Call frame traceback EIPs:
  0x00003490   cvtl, line 556 of doprnt.c
  0x30303030
 
O:\RHIDE\TEST>gsymify -o pr.out pr.exe

OK, I hope, someone will have the time to find the
bug (and a patch).

Robert
-- 
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