From: mistachkin <mistachkin@noemail.net>
Date: Wed, 6 Mar 2024 20:24:02 +0000 (+0000)
Subject: Work around obscure floating point issue seen with older versions of MSVC.
X-Git-Tag: version-3.46.0~160
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1bd583e201fbc1f81fc5cf0ba938c048742215f7;p=thirdparty%2Fsqlite.git

Work around obscure floating point issue seen with older versions of MSVC.

FossilOrigin-Name: 42d39f9140cc315df04b048f3811311fa50b51e1831d6cdf982fbce029778e43
---

diff --git a/manifest b/manifest
index da94066647..cccb344c9c 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Correction\sto\sthe\sprevious\scheck-in.
-D 2024-03-06T12:28:55.128
+C Work\saround\sobscure\sfloating\spoint\sissue\sseen\swith\solder\sversions\sof\sMSVC.
+D 2024-03-06T20:24:02.178
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -818,7 +818,7 @@ F src/trigger.c 0905b96b04bb6658509f711a8207287f1315cdbc3df1a1b13ba6483c8e341c81
 F src/update.c 6904814dd62a7a93bbb86d9f1419c7f134a9119582645854ab02b36b676d9f92
 F src/upsert.c fa125a8d3410ce9a97b02cb50f7ae68a2476c405c76aa692d3acf6b8586e9242
 F src/utf.c f23165685a67b4caf8ec08fb274cb3f319103decfb2a980b7cfd55d18dfa855e
-F src/util.c 0765014847e2a06c952dd64aef0bea5144cd5b335a161eb0768ebe4f63dfe216
+F src/util.c f27a17e6e43fa362abea4db507a1c409f0adc8048ecf4c6479e8d162158ed529
 F src/vacuum.c 604fcdaebe76f3497c855afcbf91b8fa5046b32de3045bab89cc008d68e40104
 F src/vdbe.c 7a33c5bb37e12ce35ac2d1d56a6429288b0b56c940ba660265c1428c67883729
 F src/vdbe.h c2d78d15112c3fc5ab87f5e8e0b75d2db1c624409de2e858c3d1aafb1650bb4f
@@ -2176,8 +2176,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 027e5336acc26f57f21df4980928731026c30cf88688fa0b66f13ffa0b5da3a0
-R ee785ecad1867a820bb9e665fd92d3e8
-U drh
-Z 74daf43f110405d8b8bf503998b8174f
+P 483fa2969e1e10cd8e8d2f9e3027871c65b1360b6c23897efe3ce63a3a55ae13
+R e5a2f85d4c7fe1bb0d133ab32d8d2d60
+U mistachkin
+Z 8ca80acfec7b6e2b98a8f7ce94a903f4
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index dba854ccd3..9cbb89be52 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-483fa2969e1e10cd8e8d2f9e3027871c65b1360b6c23897efe3ce63a3a55ae13
\ No newline at end of file
+42d39f9140cc315df04b048f3811311fa50b51e1831d6cdf982fbce029778e43
\ No newline at end of file
diff --git a/src/util.c b/src/util.c
index 311b7385a6..8c9e980cd1 100644
--- a/src/util.c
+++ b/src/util.c
@@ -665,6 +665,9 @@ do_atof_calc:
     u64 s2;
     rr[0] = (double)s;
     s2 = (u64)rr[0];
+#if defined(_MSC_VER) && _MSC_VER<1700
+    if( s2==0x8000000000000000LL ){ s2 = 2*(u64)(0.5*rr[0]); }
+#endif
     rr[1] = s>=s2 ? (double)(s - s2) : -(double)(s2 - s);
     if( e>0 ){
       while( e>=100  ){