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ARMCC and 64-bit unsigned integers...?

David Sudolcan

There's a knowledgebase article that was last reviewed on June 7, 2005 that says the CARM compiler does not support 64-bit unsigned integers. I'm using the ARMCC compiler (from the RealView MDK-ARM toolchain), and the following code

char s[100];
unsigned int x32;
unsigned long int x64;

sprintf(s,"sizeof(x32)=%u\r\n",sizeof(x32));
printf(s);
sprintf(s,"sizeof(x64)=%u\r\n",sizeof(x64));
printf(s);

produces the following output

sizeof(x32)=4
sizeof(x64)=4

This leads me to believe that the ARMCC tools don't support 64-bit math either.

However, if that's so, why doesn't the above code create any errors or warnings when it's compiled?

Is there a way to get 64-bit unsigned integer support in these tools?

Parents
  • 0 in reply to Andy Neil

    The one thing I really miss with electronic manuals is the ability to annotate them.

    With hardcopy manuals, you could scribble notes in the margin; eg, adding cross-references that weren't clear from the index.

    The original Windows .hlp helpfiles did have an annotation facility - but that seems to have been lost with the new .chm format.

    :-(

    Acrobat reader does also have the facility to annotate PDF files - but almost nobody enables this facility in their PDF files.

    :-(

Reply
  • 0 in reply to Andy Neil

    The one thing I really miss with electronic manuals is the ability to annotate them.

    With hardcopy manuals, you could scribble notes in the margin; eg, adding cross-references that weren't clear from the index.

    The original Windows .hlp helpfiles did have an annotation facility - but that seems to have been lost with the new .chm format.

    :-(

    Acrobat reader does also have the facility to annotate PDF files - but almost nobody enables this facility in their PDF files.

    :-(

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