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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - different std::tan() return value in Debug and Release build"
href="https://bugs.llvm.org/show_bug.cgi?id=46376">46376</a>
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<th>Summary</th>
<td>different std::tan() return value in Debug and Release build
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>MacOS X
</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
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>zsolt.garamvolgyi@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<p>
<div>
<pre>For specific inputs std::tan() returns different values in Debug and Release.
Here's the code that demonstrates the issue (tested in Xcode 10.3 (10G8) under
macOS Mojave 10.14.6 (18G95)):
#include <cmath>
int main(int argc, const char * argv[]) {
return std::tan (0.356189668f) == 0.372058868408203f ? 1 : 0; // returns 1
in Debug
//return std::tan (0.356189668f) == 0.372058898210526f ? 1 : 0; // returns
1 in Release
}</pre>
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