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Fix for ancient min/max macros in windows.h

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Disable constexpr for VS2013
Guard against older versions of VC++
This commit is contained in:
Jerry Evans 2015-11-23 15:27:20 +00:00
parent 1247271966
commit c27602172f
1 changed files with 14 additions and 2 deletions
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16
peglib.h
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@ -23,6 +23,18 @@
#include <unordered_map> #include <unordered_map>
#include <vector> #include <vector>
// guard for older versions of VC++
#ifdef _MSC_VER
// VS2013 has no constexpr
#if (_MSC_VER == 1800)
#define PEGLIB_NO_CONSTEXPR_SUPPORT
#elif (_MSC_VER >= 1800)
// good to go
#else (_MSC_VER < 1800)
#error "Requires C+11 support"
#endif
#endif
namespace peg { namespace peg {
extern void* enabler; extern void* enabler;
@ -2479,7 +2491,7 @@ public:
peg_token_iterator() peg_token_iterator()
: s_(nullptr) : s_(nullptr)
, l_(0) , l_(0)
, pos_(std::numeric_limits<size_t>::max()) {} , pos_((std::numeric_limits<size_t>::max)()) {}
peg_token_iterator(const char* syntax, const char* s) peg_token_iterator(const char* syntax, const char* s)
: peg_(syntax) : peg_(syntax)
@ -2534,7 +2546,7 @@ private:
m_.matches.insert(m_.matches.begin(), match::Item{ s_ + mpos, mlen, 0 }); m_.matches.insert(m_.matches.begin(), match::Item{ s_ + mpos, mlen, 0 });
pos_ += mpos + mlen; pos_ += mpos + mlen;
} else { } else {
pos_ = std::numeric_limits<size_t>::max(); pos_ = (std::numeric_limits<size_t>::max)();
} }
} }