[llvm] r209999 - Support: add 6-parameter format
Saleem Abdulrasool
compnerd at compnerd.org
Sun Jun 1 18:17:55 PDT 2014
Author: compnerd
Date: Sun Jun 1 20:17:54 2014
New Revision: 209999
URL: http://llvm.org/viewvc/llvm-project?rev=209999&view=rev
Log:
Support: add 6-parameter format
Since we cannot yet use variadic templates, add a specialisation for
6-parameters to format. This is motivated by a need for the additional
parameter for formatting information for an unwind decoder for Windows on ARM.
Modified:
llvm/trunk/include/llvm/Support/Format.h
Modified: llvm/trunk/include/llvm/Support/Format.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Format.h?rev=209999&r1=209998&r2=209999&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/Format.h (original)
+++ llvm/trunk/include/llvm/Support/Format.h Sun Jun 1 20:17:54 2014
@@ -170,6 +170,30 @@ public:
}
};
+/// format_object6 - This is a templated helper class used by the format
+/// function that captures the object to be formated and the format string. When
+/// actually printed, this synthesizes the string into a temporary buffer
+/// provided and returns whether or not it is big enough.
+template <typename T1, typename T2, typename T3, typename T4, typename T5,
+ typename T6>
+class format_object6 : public format_object_base {
+ T1 Val1;
+ T2 Val2;
+ T3 Val3;
+ T4 Val4;
+ T5 Val5;
+ T6 Val6;
+public:
+ format_object6(const char *Fmt, const T1 &Val1, const T2 &Val2,
+ const T3 &Val3, const T4 &Val4, const T5 &Val5, const T6 &Val6)
+ : format_object_base(Fmt), Val1(Val1), Val2(Val2), Val3(Val3), Val4(Val4),
+ Val5(Val5), Val6(Val6) { }
+
+ int snprint(char *Buffer, unsigned BufferSize) const override {
+ return snprintf(Buffer, BufferSize, Fmt, Val1, Val2, Val3, Val4, Val5, Val6);
+ }
+};
+
/// This is a helper function that is used to produce formatted output.
///
/// This is typically used like:
@@ -231,6 +255,21 @@ inline format_object5<T1, T2, T3, T4, T5
return format_object5<T1, T2, T3, T4, T5>(Fmt, Val1, Val2, Val3, Val4, Val5);
}
+/// This is a helper function that is used to produce formatted output.
+///
+/// This is typically used like:
+/// \code
+/// OS << format("%0.4f", myfloat) << '\n';
+/// \endcode
+template <typename T1, typename T2, typename T3, typename T4, typename T5,
+ typename T6>
+inline format_object6<T1, T2, T3, T4, T5, T6>
+format(const char *Fmt, const T1 &Val1, const T2 &Val2, const T3 &Val3,
+ const T4 &Val4, const T5 &Val5, const T6 &Val6) {
+ return format_object6<T1, T2, T3, T4, T5, T6>(Fmt, Val1, Val2, Val3, Val4,
+ Val5, Val6);
+}
+
} // end namespace llvm
#endif
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