http://llvm.org/bugs/show_bug.cgi?id=17027
Bug ID: 17027
Summary: std::ostringstream produces unexpected results
Product: libc++
Version: unspecified
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
On OS X, using clang & libc++ as shipped with XCode 4.6.3.
The following code fails:
#include <iomanip>
#include <sstream>
#include <cassert>
int main()
{
std::ostringstream os;
os << std::setw(2) << 1;
assert( os.str() == " 1" );
}
when compiled with:
clang++ -std=c++11 -stdlib=libc++ example.cpp
A cursory examination suggests that the default fill character is being set to
-1.
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