# FILE NAME WITH SOME SPACE \*ERROR in u\_calloc

**URL:** <https://calculix.discourse.group/t/file-name-with-some-space-error-in-u-calloc/4222>\
**Category:** Analysis issues\
**Created:** [October 22, 2026, 8:18am UTC](https://calculix.discourse.group/t/file-name-with-some-space-error-in-u-calloc/4222 "2026-10-22T08:18:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Disla](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/disla/32/3548_2.png) [@Disla](https://calculix.discourse.group/u/Disla)\
**Post date:** [October 22, 2026, 8:18am UTC](https://calculix.discourse.group/t/file-name-with-some-space-error-in-u-calloc/4222/1 "2026-10-22T08:18:48Z")

</div>

Hi,

Just want to expose this simply to fix Exit code.16

A wrong inp file name (Name with space caracter) delivers an error with the dark message:

\*ERROR in u\_calloc: error allocating memory  
variable=au1, file=mafillsmmain.c, line=183, num=1081231458, size=8

> Exit code: 16

One can spent a lot of time looking for a mistake in the file content when a simple warning (wrong file name) would be enough.

Hope this help others and a “pre-launch” warning can be set up in the code.

Regards

---

<div class="post-metadata">

**Author:** ![fgr](https://avatars.discourse-cdn.com/v4/letter/f/f4b2a3/32.png) [@fgr](https://calculix.discourse.group/u/fgr)\
**Post date:** [October 22, 2026, 5:01pm UTC](https://calculix.discourse.group/t/file-name-with-some-space-error-in-u-calloc/4222/2 "2026-10-22T17:01:55Z")

</div>

@Disla could the failure be something related to your environment or a specific data card in your job file.

In window 10 I can run job with a space in the filename by quote the filename like this

```auto
ccx_2.23 "job name"

```

and in Linux I can even run a job with a (space character) as filename by putting an escape character in front of the filename like this, and get the following out files.

```auto
../src/ccx_2.23 \ 

drwxrwxr-x 2 xxx xxx 4096 okt 22 18:09 .
drwxrwxr-x 8 xxx xxx 4096 okt 22 18:06 ..
-rw-rw-r-- 1 xxx xxx 0 okt 22 18:09 ' .12d'
-rw-rw-r-- 1 xxx xxx 274 okt 22 18:12 .cvg
-rw-rw-r-- 1 xxx xxx 0 okt 22 18:09 .dat
-rw-rw-r-- 1 xxx xxx 99191833 okt 22 18:12 ' .frd'
-rwxr-xr-x 1 xxx xxx 27542686 okt 22 18:07 ' .inp'
-rw-rw-r-- 1 xxx xxx 170 okt 22 18:12 .sta

```