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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang on Windows: under FE_UPWARD printf(“%.1f\n”, 0.0) prints 0.1 instead of 0.0"
href="https://bugs.llvm.org/show_bug.cgi?id=51542">51542</a>
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<th>Summary</th>
<td>Clang on Windows: under FE_UPWARD printf(“%.1f\n”, 0.0) prints 0.1 instead of 0.0
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>12.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>pavel.morozkin@gmail.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>Sample code (t928.c):
#include <stdio.h>
#include <fenv.h>
#pragma fenv_access (on)
int main(void)
{
int i = fesetround( FE_UPWARD );
if ( ! i )
{
printf( "%.1f\n", 0.0 );
}
return 0;
}
Invocation: clang t928.c -Wall -Wextra -std=c11 -ffp-model=strict -pedantic &&
./a.exe
Expected output: 0.0
Actual output: 0.1
Tool version: 12.0.0</pre>
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