StackOverflow2013

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plurals

PO
primarykey
Id
4004175
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-10-23T13:27:51.953
FavoriteCount
0
LastActivityDate
2010-10-23T13:27:51.953
LastEditDate
LastEditorUserId
0
OwnerUserId
242889
ParentId
4002141
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
<code>1000</code> in hex is <code>0x3E8</code>. If your system stores an <code>int</code> as a little-endian 32-bit value, then <code>x</code> is stored like this in memory: <pre><code>+------+------+------+------+ | 0xE8 | 0x03 | 0x00 | 0x00 | +------+------+------+------+ ^ | ---increasing addresses---> &x </code></pre> For the first case: If your system has an 8-bit <code>char</code>, when you assign <code>&x</code> to <code>char *ptr</code> and then dereference it, you get the value <code>0xE8</code> interpreted as a <code>char</code>. If your system treats the <code>char</code> type as signed, and if the signed representation is 2's complement, then <code>0xE8</code> is interpreted as <code>-24</code>. For the second case: If your system has a little-endian 32-bit <code>float</code>, when you assign <code>&x</code> to <code>float *ptr</code> and then dereference it, you get the value with a bit pattern of <code>0x000003E8</code> interpreted as <code>float</code>. If your system represents <code>float</code> in the IEEE 754 format, then the most significant bit represents the sign (0 means it's positive), the next 8 most significant bits represents the exponent (0 means that the number is zero or denormalized - very small), and the remaining 23 bits represent the "significand" or "mantissa" (0x3E8 or 1000). This actually has the value 1000 * 2-149, which is approximately 1.4013 * 10-42 - you can see this value by using <code>%g</code> instead of <code>%f</code> in the <code>printf</code> format string.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POPointers pointing to invalid location
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USMatthew Slattery
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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