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Changing bitfield enums to unsigned ints.

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This was suggested by Chandler Carruth on the basis of past experience with
esoteric compilers/quirks relating to signed enums.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148746 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2012-01-23 23:27:47 +00:00
parent c387fc66bd
commit 153c8adc49
1 changed files with 9 additions and 7 deletions
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16
include/llvm/Support/CommandLine.h
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@ -163,12 +163,14 @@ class Option {
virtual void anchor();
int NumOccurrences; // The number of times specified
enum NumOccurrencesFlag Occurrences : 3;
// Occurrences, HiddenFlag, and Formatting are all enum types but to avoid
// with signed enums in bitfields in MSVC we'll store them as unsigned
unsigned Occurrences : 3; // enum NumOccurrencesFlag
// not using the enum type for 'Value' because zero is an implementation
// detail representing the non-value
unsigned Value : 2;
enum OptionHidden HiddenFlag : 2;
enum FormattingFlags Formatting : 2;
unsigned HiddenFlag : 2; // enum OptionHidden
unsigned Formatting : 2; // enum FormattingFlags
unsigned Misc : 3;
unsigned Position; // Position of last occurrence of the option
unsigned AdditionalVals;// Greater than 0 for multi-valued option.
@ -179,17 +181,17 @@ public:
const char *ValueStr; // String describing what the value of this option is
inline enum NumOccurrencesFlag getNumOccurrencesFlag() const {
return Occurrences;
return (enum NumOccurrencesFlag)Occurrences;
}
inline enum ValueExpected getValueExpectedFlag() const {
return Value ? static_cast<enum ValueExpected>(Value)
return Value ? ((enum ValueExpected)Value)
: getValueExpectedFlagDefault();
}
inline enum OptionHidden getOptionHiddenFlag() const {
return HiddenFlag;
return (enum OptionHidden)HiddenFlag;
}
inline enum FormattingFlags getFormattingFlag() const {
return Formatting;
return (enum FormattingFlags)Formatting;
}
inline unsigned getMiscFlags() const {
return Misc;