StackOverflow2013

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plurals

PO
primarykey
Id
13705113
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-12-04T14:26:24.447
FavoriteCount
0
LastActivityDate
2013-12-23T19:21:50.060
LastEditDate
2013-12-23T19:21:50.060
LastEditorUserId
1367661
OwnerUserId
1003575
ParentId
13704964
PostTypeId
2
Score
8
ViewCount
0
LastEditorDisplayName
text
Body
question 1) the header file <code><stdio.h></code> is included in order to have reference to the input/output function from C library. The <code><stdio.h></code> contains only function references and not the definition of the functions. The <code><stdio.h></code> contains references to functions like: <ul> <li><code>printf</code> (out) output to <code>stdout</code> (default: screen)</li> <li><code>scanf</code> (in) reading from <code>stdin</code> (default: keyboard)</li> </ul> question 2) <code>char *argv[]</code> is an array of pointer. Each pointer element is pointing to a string. Each string is an argument from the command line. Example: If your program name after compilation is "myprogram" and you calling your program as following: <pre><code>$myprogram -t test1 test2 </code></pre> So the <code>argv</code> is an array containing 4 pointers to the following string <code>argv[0]</code> is a pointer to the string "myprogram" <code>argv[1]</code> is a pointer to the string "-t" <code>argv[2]</code> is a pointer to the string "test1" <code>argv[3]</code> is a pointer to the string "test2" question 3) <code>%d</code> means integer and not double. For double you can use <code>%lf</code> or <code>%g</code> question 4) <code>%s</code> means that you are printing string example related to <code>argv</code>: <pre><code>printf("argv[0] = %s\n", argv[0]); printf("argv[1] = %s\n", argv[1]); printf("argv[2] = %s\n", argv[2]); printf("argv[3] = %s\n", argv[3]); </code></pre> based on question 2 the above prints give the following output: <pre><code>argv[0] = myprogram argv[1] = -t argv[2] = test1 argv[3] = test2 </code></pre>
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1. POWhat does %d mean?
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1. PTAnswer
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1. USAduait Pokhriyal
UserOwnerUserId
1. USMOHAMED
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1. POWhat does %d mean?
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1. VO
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1. COWow, Mohammed. Amazing. Very well explained.
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 USWolfpack'08

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