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On Fri, Jul 12, 2024 at 2: 26 AM Ivan Luthfi <ivanluthfi5@ gmail. com> wrote: I have warning: FormatFunction. c: In function 'ComputeStiffnessMatrix': FormatFunction. c: 128: 46: warning: '%d' directive writing between 1
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<div dir="ltr"><div dir="ltr">On Fri, Jul 12, 2024 at 2:26 AM Ivan Luthfi <<a href="mailto:ivanluthfi5@gmail.com">ivanluthfi5@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-6347020177472176156">
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I have warning: FormatFunction. c: In function 'ComputeStiffnessMatrix': FormatFunction. c: 128: 46: warning: '%d' directive writing between 1 and 11 bytes into a region of size between 0 and 99 [-Wformat-overflow] (line128) sprintf(filename,
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<div dir="ltr">I have warning:<br><br>FormatFunction.c: In function 'ComputeStiffnessMatrix':<div>FormatFunction.c:128:46: warning: '%d' directive writing between 1 and 11 bytes into a region of size between 0 and 99 [-Wformat-overflow]<br>(line128) sprintf(filename, "%sc%d_N%dM%d_permeability.log", up->problem_description, up->problem_flag, up->Nx, up->Mx)<br><br>do you know why this warning appear? and how to fix it.</div></div></div></blockquote><div><br></div><div>You are writing a PetscInt into the spot for an int. You can</div><div><br></div><div> 1) Cast to int: </div><div><br></div><div>sprintf(filename, "%sc%d_N%dM%d_permeability.log", up->problem_description, up->problem_flag, (int)up->Nx, (int)up->Mx)<br></div><div><br></div><div> 2) Use the custom format</div><div><br></div><div>sprintf(filename, "%sc%d_N%" PetscInt_FMT "M%" PetscInt_FMT "_permeability.log", up->problem_description, up->problem_flag, up->Nx, up->Mx)<br></div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-6347020177472176156"><div dir="ltr"><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">Best regards,</div><div style="font-size:12.8px">--<br></div></div></div></div></div></div>
</div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!YNtOwQCCJYLu6JV0ph8gXnJeFhrQXAiTdZyhV_C0bBut_pZLBhsZw-xORAasjijkRzFe_0udBt4lKX2xYfz0$" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>