This fixes a test (formatfiltertest07) failure on i686-linux. See also <https://github.com/steveire/grantlee/issues/85>. * gnu/packages/patches/grantlee-fix-i586-precision.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it. * gnu/packages/qt.scm (grantlee)[source]: Add patch.
		
			
				
	
	
		
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			40 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
From 13094b78a790786030a468453c2b3ead4c7fd9cf Mon Sep 17 00:00:00 2001
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From: Fabian Vogt <fabian@ritter-vogt.de>
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Date: Sun, 13 Nov 2022 14:01:21 +0100
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Subject: [PATCH] Fix formatting of some larger file sizes on 32bit x86
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With the x87 FPU available, GCC uses long double precision for some variables.
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Due to the function call passing a double, some comparisons break down.
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That resulted in "1.00 YB" being printed as "1000.00 ZB" instead.
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Fixes #85
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---
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 templates/lib/util.cpp | 7 +++++++
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 1 file changed, 7 insertions(+)
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diff --git a/templates/lib/util.cpp b/templates/lib/util.cpp
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index 504674a7..a0381c59 100644
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--- a/templates/lib/util.cpp
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+++ b/templates/lib/util.cpp
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@@ -23,6 +23,7 @@
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 #include "metaenumvariable_p.h"
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 #include "metatype.h"
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+#include <cfloat>
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 #include <QtCore/QStringList>
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 QString Grantlee::unescapeStringLiteral(const QString &input)
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@@ -212,7 +213,13 @@ std::pair<qreal, QString> Grantlee::calcFileSize(qreal size, int unitSystem,
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   bool found = false;
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   int count = 0;
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   const qreal baseVal = (_unitSystem == 10) ? 1000.0F : 1024.0F;
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+#if FLT_EVAL_METHOD == 2
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+  // Avoid that this is treated as long double, as the increased
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+  // precision breaks the comparison below.
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+  volatile qreal current = 1.0F;
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+#else
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   qreal current = 1.0F;
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+#endif
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   int units = decimalUnits.size();
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   while (!found && (count < units)) {
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     current *= baseVal;
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