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Re: [libgfortran,patch] Zero-length strings messed up in library (PR33079)

From: Tobias Schlüter <Tobias dot Schlueter at physik dot uni-muenchen dot de>
To: François-Xavier Coudert <fxcoudert at gmail dot com>
Cc: GFortran <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 16 Aug 2007 15:52:22 +0200
Subject: Re: [libgfortran,patch] Zero-length strings messed up in library (PR33079)
References: <19c433eb0708160621s154b6b7di7cd217c38ff94cd@mail.gmail.com>

François-Xavier Coudert wrote:

-  if (*len > 0)
+  if (*len == 0)
+    {
+      /* A zero-length Fortran string is "".  */
+      char * tmp = internal_malloc_size (1);
+      tmp[0] = '\0';
+      *dest = tmp;
+    }
+  else

Do you zero-terminate the string because you don't want to allocate zero memory? I don't know if allocating a pointer to zero memory would work, though.

- Tobi

Follow-Ups:
- Re: [libgfortran,patch] Zero-length strings messed up in library (PR33079)
  - From: FX Coudert

References:
- [libgfortran,patch] Zero-length strings messed up in library (PR33079)
  - From: François-Xavier Coudert

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