[Bug c/27413] New: compiling with -ansi puts in broken version of atanh

[anonymous at mailinator dot com]

If you use -ansi to compile a program that uses the atanh function, the
compiler somehow replaces atanh with a function that just returns 0.  I think
the compiler should either put in the correct atanh function or refuses to
link/compile.  The following shows how to reproduce the bug:


$ cat > bug.c

#include 
#include 
#include 

int main() { printf("atanh(%f) returns %f!\n",.32,atanh(.32)); return 0;}

$ gcc bug.c -o bug.exe -lm && bug.exe
atanh(0.32) returns 0.331647!
$ gcc -ansi bug.c -o bug.exe -lm && bug.exe
atanh(0.32) returns 0.00!


-- 
   Summary: compiling with -ansi puts in broken version of atanh
   Product: gcc
   Version: 3.3.2
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
AssignedTo: unassigned at gcc dot gnu dot org
    ReportedBy: anonymous at mailinator dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27413

[Bug c/27413] compiling with -ansi puts in broken version of atanh

[anonymous at mailinator dot com]

--- Comment #1 from anonymous at mailinator dot com  2006-05-04 01:25 
---
Created an attachment (id=11370)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11370&action=view)
.i file created with -save-temps flag


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27413

[Bug c/27413] compiling with -ansi puts in broken version of atanh

[anonymous at mailinator dot com]

--- Comment #2 from anonymous at mailinator dot com  2006-05-04 01:27 
---
Created an attachment (id=11371)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11371&action=view)
.s file created with -save-temps


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27413

[Bug c/27413] compiling with -ansi puts in broken version of atanh

[anonymous at mailinator dot com]

--- Comment #3 from anonymous at mailinator dot com  2006-05-04 01:28 
---
Created an attachment (id=11372)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11372&action=view)
output of compiler with --save-temps


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27413