Refactor custom precision in floating point stringification

Also fixup tests.

projects/SelfTest/Baselines/compact.sw.approved.txt

@@ -859,6 +859,10 @@ Condition.tests.cpp:<line number>: passed: cpc != 0 for: 0x<hex digits> != 0
 Condition.tests.cpp:<line number>: passed: returnsNull() == 0 for: {null string} == 0
 Condition.tests.cpp:<line number>: passed: returnsConstNull() == 0 for: {null string} == 0
 Condition.tests.cpp:<line number>: passed: 0 != p for: 0 != 0x<hex digits>
+ToStringGeneral.tests.cpp:<line number>: passed: str1.size() == 3 + 5 for: 8 == 8
+ToStringGeneral.tests.cpp:<line number>: passed: str2.size() == 3 + 10 for: 13 == 13
+ToStringGeneral.tests.cpp:<line number>: passed: str1.size() == 2 + 5 for: 7 == 7
+ToStringGeneral.tests.cpp:<line number>: passed: str2.size() == 2 + 15 for: 17 == 17
 Matchers.tests.cpp:<line number>: passed: "foo", Predicate<const char*>([] (const char* const&) { return true; }) for: "foo" matches undescribed predicate
 CmdLine.tests.cpp:<line number>: passed: result for: {?}
 CmdLine.tests.cpp:<line number>: passed: config.processName == "" for: "" == ""

projects/SelfTest/Baselines/console.std.approved.txt

@@ -1299,6 +1299,6 @@ due to unexpected exception with message:
   Why would you throw a std::string?
 
 ===============================================================================
-test cases:  266 |  199 passed |  63 failed |  4 failed as expected
-assertions: 1449 | 1304 passed | 124 failed | 21 failed as expected
+test cases:  267 |  200 passed |  63 failed |  4 failed as expected
+assertions: 1453 | 1308 passed | 124 failed | 21 failed as expected
 

projects/SelfTest/Baselines/console.sw.approved.txt

@@ -6192,6 +6192,40 @@ Condition.tests.cpp:<line number>: PASSED:
 with expansion:
   0 != 0x<hex digits>
 
+-------------------------------------------------------------------------------
+Precision of floating point stringification can be set
+  Floats
+-------------------------------------------------------------------------------
+ToStringGeneral.tests.cpp:<line number>
+...............................................................................
+
+ToStringGeneral.tests.cpp:<line number>: PASSED:
+  CHECK( str1.size() == 3 + 5 )
+with expansion:
+  8 == 8
+
+ToStringGeneral.tests.cpp:<line number>: PASSED:
+  REQUIRE( str2.size() == 3 + 10 )
+with expansion:
+  13 == 13
+
+-------------------------------------------------------------------------------
+Precision of floating point stringification can be set
+  Double
+-------------------------------------------------------------------------------
+ToStringGeneral.tests.cpp:<line number>
+...............................................................................
+
+ToStringGeneral.tests.cpp:<line number>: PASSED:
+  CHECK( str1.size() == 2 + 5 )
+with expansion:
+  7 == 7
+
+ToStringGeneral.tests.cpp:<line number>: PASSED:
+  REQUIRE( str2.size() == 2 + 15 )
+with expansion:
+  17 == 17
+
 -------------------------------------------------------------------------------
 Predicate matcher can accept const char*
 -------------------------------------------------------------------------------
@@ -11389,6 +11423,6 @@ Misc.tests.cpp:<line number>
 Misc.tests.cpp:<line number>: PASSED:
 
 ===============================================================================
-test cases:  266 |  183 passed |  79 failed |  4 failed as expected
-assertions: 1466 | 1304 passed | 141 failed | 21 failed as expected
+test cases:  267 |  184 passed |  79 failed |  4 failed as expected
+assertions: 1470 | 1308 passed | 141 failed | 21 failed as expected
 

projects/SelfTest/Baselines/junit.sw.approved.txt

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <testsuitesloose text artifact
 >
-  <testsuite name="<exe-name>" errors="17" failures="125" tests="1467" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
+  <testsuite name="<exe-name>" errors="17" failures="125" tests="1471" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
     <properties>
       <property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
       <property name="random-seed" value="1"/>
@@ -574,6 +574,8 @@ Message.tests.cpp:<line number>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/empty quoted name" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/quoted string followed by tag exclusion" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Pointers can be compared to null" time="{duration}"/>
+    <testcase classname="<exe-name>.global" name="Precision of floating point stringification can be set/Floats" time="{duration}"/>
+    <testcase classname="<exe-name>.global" name="Precision of floating point stringification can be set/Double" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Predicate matcher can accept const char*" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Process can be configured on command line/empty args don't cause a crash" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Process can be configured on command line/default - no arguments" time="{duration}"/>

projects/SelfTest/Baselines/xml.sw.approved.txt

@@ -7778,6 +7778,47 @@ Nor would this
       </Expression>
       <OverallResult success="true"/>
     </TestCase>
+    <TestCase name="Precision of floating point stringification can be set" tags="[floatingPoint][toString]" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+      <Section name="Floats" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+        <Expression success="true" type="CHECK" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+          <Original>
+            str1.size() == 3 + 5
+          </Original>
+          <Expanded>
+            8 == 8
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+          <Original>
+            str2.size() == 3 + 10
+          </Original>
+          <Expanded>
+            13 == 13
+          </Expanded>
+        </Expression>
+        <OverallResults successes="2" failures="0" expectedFailures="0"/>
+      </Section>
+      <Section name="Double" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+        <Expression success="true" type="CHECK" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+          <Original>
+            str1.size() == 2 + 5
+          </Original>
+          <Expanded>
+            7 == 7
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/UsageTests/ToStringGeneral.tests.cpp" >
+          <Original>
+            str2.size() == 2 + 15
+          </Original>
+          <Expanded>
+            17 == 17
+          </Expanded>
+        </Expression>
+        <OverallResults successes="2" failures="0" expectedFailures="0"/>
+      </Section>
+      <OverallResult success="true"/>
+    </TestCase>
     <TestCase name="Predicate matcher can accept const char*" tags="[compilation][matchers]" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
       <Expression success="true" type="REQUIRE_THAT" filename="projects/<exe-name>/UsageTests/Matchers.tests.cpp" >
         <Original>
@@ -13728,7 +13769,7 @@ loose text artifact
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="1304" failures="142" expectedFailures="21"/>
+    <OverallResults successes="1308" failures="142" expectedFailures="21"/>
   </Group>
-  <OverallResults successes="1304" failures="141" expectedFailures="21"/>
+  <OverallResults successes="1308" failures="141" expectedFailures="21"/>
 </Catch>