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added a check for wchar_t to deal with a potential problem with MS compilers

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This commit is contained in:
mes5k 2009-10-23 21:42:43 +00:00
parent 801d893678
commit ab82cc7f87
1 changed files with 12 additions and 0 deletions
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12
include/tclap/StandardTraits.h
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@ -30,6 +30,15 @@
#include <config.h> // To check for long long #include <config.h> // To check for long long
#endif #endif
// If Microsoft has already typedef'd wchar_t as an unsigned
// short, then compiles will break because it's as if we're
// creating ArgTraits twice for unsigned short. Thus...
#ifdef _MSC_VER
#ifndef _NATIVE_WCHAR_T_DEFINED
#define TCLAP_DONT_DECLARE_WCHAR_T_ARGTRAITS
#endif
#endif
namespace TCLAP { namespace TCLAP {
// ====================================================================== // ======================================================================
@ -156,13 +165,16 @@ struct ArgTraits<bool> {
typedef ValueLike ValueCategory; typedef ValueLike ValueCategory;
}; };
/** /**
* wchar_ts have value-like semantics. * wchar_ts have value-like semantics.
*/ */
#ifndef TCLAP_DONT_DECLARE_WCHAR_T_ARGTRAITS
template<> template<>
struct ArgTraits<wchar_t> { struct ArgTraits<wchar_t> {
typedef ValueLike ValueCategory; typedef ValueLike ValueCategory;
}; };
#endif
/** /**
* Strings have string like argument traits. * Strings have string like argument traits.