core/com.nokia.carbide.cpp.compiler.doc.user/html/pragmas_x86/p_ten_byte_long_double.htm
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<title>ten_byte_long_double</title>
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<h3>ten_byte_long_double</h3>
<p> Changes the size of the long double to 80-bits (10 bytes) allowing the full precision and range of extended precision or temporary real format used in x86 floating point registers.</p>
<h5>Syntax</h5>
<p class="code">#pragma ten_byte_long_double on | off | reset</p>
<h5>Targets</h5>
Intel x86<br />
<h5>Remarks</h5>
<p>The range is approximately <span class="code">3.632^10-4932</span> to <span class="code">1.190^10+4932</span>.</p>
<p>Note there is no indication in the object code about what long double size was used to create it, thus the linker cannot warn on mismatches. To ensure a match, all libraries and programs exchanging long double must be rebuilt.</p>
<p>The default setting is off, where both long double and double are both 64-bits.<br />
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