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36 lines
5.1 KiB
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<TITLE>CLHS: Condition Type STORAGE-CONDITION</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="e_parse_.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="c_condit.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="m_assert.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<A NAME="storage-condition"><I>Condition Type</I> <B>STORAGE-CONDITION</B></A> <P>
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<P><B>Class Precedence List:</B><P>
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<A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A>, <A REL=DEFINITION HREF="e_seriou.htm#serious-condition"><B>serious-condition</B></A>, <A REL=DEFINITION HREF="e_cnd.htm#condition"><B>condition</B></A>, <A REL=DEFINITION HREF="t_t.htm#t"><B>t</B></A> <P>
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<P><B>Description:</B><P>
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<P>
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The <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A> consists of serious conditions that relate to problems with memory management that are potentially due to <A REL=DEFINITION HREF="26_glo_i.htm#implementation-dependent"><I>implementation-dependent</I></A> limits rather than semantic errors in <A REL=DEFINITION HREF="26_glo_c.htm#conforming_program"><I>conforming programs</I></A>, and that typically warrant entry to the debugger if not handled. Depending on the details of the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A>, these might include such problems as stack overflow, memory region overflow, and storage exhausted. <P>
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<P><B>Notes:</B><P>
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<P>
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While some Common Lisp operations might signal <A REL=DEFINITION HREF="#storage-condition"><I>storage-condition</I></A> because they are defined to create <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A>, it is unspecified whether operations that are not defined to create <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A> create them anyway and so might also signal <A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A>. Likewise, the evaluator itself might create <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A> and so might signal <A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A>. (The natural assumption might be that such <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> creation is naturally inefficient, but even that is <A REL=DEFINITION HREF="26_glo_i.htm#implementation-dependent"><I>implementation-dependent</I></A>.) In general, the entire question of how storage allocation is done is <A REL=DEFINITION HREF="26_glo_i.htm#implementation-dependent"><I>implementation-dependent</I></A>, and so any operation might signal <A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A> at any time. Because such a <A REL=DEFINITION HREF="26_glo_c.htm#condition"><I>condition</I></A> is indicative of a limitation of the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> or of the <I>image</I> rather than an error in a <A REL=DEFINITION HREF="26_glo_p.htm#program"><I>program</I></A>, <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A> of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="#storage-condition"><B>storage-condition</B></A> are not of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_error.htm#error"><B>error</B></A>. <P>
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