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glr2.cc: remove usage of PTRDIFF_MAX

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* data/skeletons/glr2.cc: Use std::ptrdiff_t and numeric_limits.
This commit is contained in:
Valentin Tolmer
2020-09-09 17:33:21 +02:00
committed by Akim Demaille
parent 1c5b05ad31
commit 8bfc319f8e
2 changed files with 6 additions and 20 deletions
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14
data/skeletons/glr2.cc
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@@ -130,6 +130,7 @@ b4_percent_code_get([[requires]])[
#include <cstring> // memcpy
#include <iostream>
#include <iomanip>
#include <limits>
#include <stdexcept>
#include <stdint.h>
#include <string>
@@ -144,13 +145,6 @@ b4_percent_code_get([[requires]])[
]b4_cast_define[
]b4_null_define[
// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
// -pedantic reports as being a C++11 extension.
#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
&& defined __clang__ && 4 <= __clang_major__
# pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
template <typename Parameter>
class StrongIndexAlias
{
@@ -211,12 +205,16 @@ class StrongIndexAlias
}
private:
static const ptrdiff_t INVALID_INDEX = PTRDIFF_MAX;
static const std::ptrdiff_t INVALID_INDEX;
// WARNING: 0-initialized.
std::ptrdiff_t value_;
};
template<typename T>
const std::ptrdiff_t StrongIndexAlias<T>::INVALID_INDEX =
std::numeric_limits<std::ptrdiff_t>::max();
// Whether we are compiled with exception support.
#ifndef YY_EXCEPTIONS
# if defined __GNUC__ && !defined __EXCEPTIONS