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Bug 608915 - part 1 - extend ToPrecision to tell use whether exponential notation was used; r=Waldo

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This commit is contained in:
Nathan Froyd 2013-11-07 12:46:05 -05:00
parent b9cb6aeb20
commit 19ffd38bd1
4 changed files with 40 additions and 0 deletions
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35
mfbt/double-conversion/ToPrecision-exponential.patch Normal file
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@ -0,0 +1,35 @@
1e7bf0c636b8cca54dd83456a0f8fa219343e2a1 Bug 608195 - part 2 - extend ToPrecision to tell use whether exponential notation was used
diff --git a/mfbt/double-conversion/double-conversion.cc b/mfbt/double-conversion/double-conversion.cc
index febba6c..394b6a0 100644
--- a/mfbt/double-conversion/double-conversion.cc
+++ b/mfbt/double-conversion/double-conversion.cc
@@ -283,7 +283,9 @@ bool DoubleToStringConverter::ToExponential(
bool DoubleToStringConverter::ToPrecision(double value,
int precision,
+ bool* used_exponential_notation,
StringBuilder* result_builder) const {
+ *used_exponential_notation = false;
if (Double(value).IsSpecial()) {
return HandleSpecialValues(value, result_builder);
}
@@ -325,6 +327,7 @@ bool DoubleToStringConverter::ToPrecision(double value,
decimal_rep[i] = '0';
}
+ *used_exponential_notation = true;
CreateExponentialRepresentation(decimal_rep,
precision,
exponent,
diff --git a/mfbt/double-conversion/double-conversion.h b/mfbt/double-conversion/double-conversion.h
index 0900ba0..957575c 100644
--- a/mfbt/double-conversion/double-conversion.h
+++ b/mfbt/double-conversion/double-conversion.h
@@ -270,6 +270,7 @@ class DoubleToStringConverter {
// exponent character, the exponent's sign, and at most 3 exponent digits).
MFBT_API bool ToPrecision(double value,
int precision,
+ bool* used_exponential_notation,
StringBuilder* result_builder) const;
enum DtoaMode {

3
mfbt/double-conversion/double-conversion.cc
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@ -283,7 +283,9 @@ bool DoubleToStringConverter::ToExponential(
bool DoubleToStringConverter::ToPrecision(double value,
int precision,
bool* used_exponential_notation,
StringBuilder* result_builder) const {
*used_exponential_notation = false;
if (Double(value).IsSpecial()) {
return HandleSpecialValues(value, result_builder);
}
@ -325,6 +327,7 @@ bool DoubleToStringConverter::ToPrecision(double value,
decimal_rep[i] = '0';
}
*used_exponential_notation = true;
CreateExponentialRepresentation(decimal_rep,
precision,
exponent,

1
mfbt/double-conversion/double-conversion.h
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@ -270,6 +270,7 @@ class DoubleToStringConverter {
// exponent character, the exponent's sign, and at most 3 exponent digits).
MFBT_API bool ToPrecision(double value,
int precision,
bool* used_exponential_notation,
StringBuilder* result_builder) const;
enum DtoaMode {

1
mfbt/double-conversion/update.sh
View File

@ -20,3 +20,4 @@ patch -p3 < add-mfbt-api-markers.patch
patch -p3 < use-StandardInteger.patch
patch -p3 < use-mozilla-assertions.patch
patch -p3 < use-static_assert.patch
patch -p3 < ToPrecision-exponential.patch