Warning during the compilation of the new version of CUTEst

[amontoison]

@nimgould

worhp_main.c:102:55: warning: ‘%s’ directive output may be truncated writing up to 127 bytes into a region of size 112 [-Wformat-truncation=]
  102 |     snprintf(buffer, sizeof(buffer), "CUTEst problem: %s", cutest_problem);
      |                                                       ^~   ~~~~~~~~~~~~~~
In file included from /usr/include/stdio.h:894,
                 from worhp_main.c:20:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:71:10: note: ‘__builtin___snprintf_chk’ output between 17 and 144 bytes into a destination of size 128
   71 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   72 |                                    __glibc_objsize (__s), __fmt,
      |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   73 |                                    __va_arg_pack ());

[nimgould]

Yes, I have seen these warning, but my C isn't good enough to know how to fix them. Maybe @jfowkes might know?

[jfowkes]

Well this is old-school C: it's complaining that the string buffer is too small and so could be truncated. I think the simplest solution is just to increase the buffer size:

char buffer[STRING_LENGTH+20];

Please test if this fixes the problem though!

[nimgould]

That works here. Thanks