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plurals

PO
primarykey
Id
1105009
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2009-07-09T16:29:35.997
FavoriteCount
0
LastActivityDate
2009-07-09T16:29:35.997
LastEditDate
LastEditorUserId
0
OwnerUserId
20713
ParentId
1103047
PostTypeId
2
Score
2
ViewCount
0
LastEditorDisplayName
text
Body
Using C's <a href="http://linux.die.net/man/3/popen" rel="nofollow noreferrer"><code>popen</code></a> (probably the simplest solution, even if it doesn't use C++'s <code>iostream</code>): <pre><code>FILE *p = popen("echo hello", "r"); std::string s; for (size_t count; (count = fread(buf, 1, sizeof(buf), p));) s += string(buf, buf + count); pclose(p); </code></pre> Assuming your <code>iostream</code> has the non-standard x<code>fstream::</code>x<code>fstream(int fd)</code> constructor: <pre><code>FILE *p = popen("echo hello", "r"); std::ifstream p2(fileno(p)); std::string s; p2 >> s; p2.close(); pclose(p); </code></pre> Using <a href="http://www.boost.org/doc/libs/release/libs/iostreams/" rel="nofollow noreferrer">Boost.Iostreams</a>, you don't have to depend upon non-standard extensions to <code>iostream</code>: <pre><code>boost::iostreams::file_descriptor_source p2(fileno(p)); </code></pre> Unfortunately, Windows is horrible and <a href="http://msdn.microsoft.com/en-us/library/96ayss4b.aspx" rel="nofollow noreferrer"><code>_popen</code></a> only works for console applications; for a graphical app: <pre><code>SECURITY_ATTRIBUTES sec; sec.nLength = sizeof(sec); sec.bInheritHandle = TRUE; sec.lpSecurityDescriptor = NULL; HANDLE *h[2]; CreatePipe(&h[0], &h[1], &sec, 0); SetHandleInformation(h[0], HANDLE_FLAG_INHERIT, 0) STARTUPINFO si; memset((void *)&si, 0, sizeof(si)); si.hStdInput = INVALID_HANDLE_VALUE; si.hStdOutput = h[1]; si.hStdError = INVALUD_HANDLE_VALUE; si.dwFlags |= STARTF_USESTDHANDLES; CreateProcess(NULL, "cmd /c \"echo hello\"", NULL, NULL, TRUE, 0, NULL, NULL, &si, NULL); boost::iostreams::file_descriptor_source p(h[0]); </code></pre> (completely untested)
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1. This table or related slice is empty.
PostParentId
1. POCapturing syscall stdout without writing to file in C/C++
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1. PTAnswer
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1. USephemient
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1. POCapturing syscall stdout without writing to file in C/C++
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