| /*============================================================================= | |
| Boost.Wave: A Standard compliant C++ preprocessor library | |
| http://www.boost.org/ | |
| Copyright (c) 2001-2011 Hartmut Kaiser. Distributed under the Boost | |
| Software License, Version 1.0. (See accompanying file | |
| LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| =============================================================================*/ | |
| #if !defined(CPP_EXPRESSION_VALUE_HPP_452FE66D_8754_4107_AF1E_E42255A0C18A_INCLUDED) | |
| #define CPP_EXPRESSION_VALUE_HPP_452FE66D_8754_4107_AF1E_E42255A0C18A_INCLUDED | |
| #if defined (BOOST_SPIRIT_DEBUG) | |
| #include <iostream> | |
| #endif // defined(BOOST_SPIRIT_DEBUG) | |
| #include <boost/wave/wave_config.hpp> | |
| #include <boost/wave/grammars/cpp_value_error.hpp> // value_error | |
| // this must occur after all of the includes and before any code appears | |
| #ifdef BOOST_HAS_ABI_HEADERS | |
| #include BOOST_ABI_PREFIX | |
| #endif | |
| /////////////////////////////////////////////////////////////////////////////// | |
| namespace boost { | |
| namespace wave { | |
| namespace grammars { | |
| namespace closures { | |
| class closure_value; | |
| inline bool as_bool(closure_value const& v); | |
| /////////////////////////////////////////////////////////////////////////////// | |
| // | |
| // The closure_value class represents the closure type, which is used for the | |
| // expression grammar. | |
| // | |
| // This class was introduced to allow the expression grammar to respect | |
| // the numeric type of a numeric literal or expression result. | |
| // | |
| /////////////////////////////////////////////////////////////////////////////// | |
| class closure_value { | |
| public: | |
| enum value_type { | |
| is_int = 1, | |
| is_uint = 2, | |
| is_bool = 3 | |
| }; | |
| closure_value(value_error valid_ = error_noerror) | |
| : type(is_int), valid(valid_) | |
| { value.i = 0; } | |
| explicit closure_value(int i, value_error valid_ = error_noerror) | |
| : type(is_int), valid(valid_) | |
| { value.i = i; } | |
| explicit closure_value(unsigned int ui, value_error valid_ = error_noerror) | |
| : type(is_uint), valid(valid_) | |
| { value.ui = ui; } | |
| explicit closure_value(int_literal_type i, value_error valid_ = error_noerror) | |
| : type(is_int), valid(valid_) | |
| { value.i = i; } | |
| explicit closure_value(uint_literal_type ui, value_error valid_ = error_noerror) | |
| : type(is_uint), valid(valid_) | |
| { value.ui = ui; } | |
| explicit closure_value(bool b, value_error valid_ = error_noerror) | |
| : type(is_bool), valid(valid_) | |
| { value.b = b; } | |
| value_type get_type() const { return type; } | |
| value_error is_valid() const { return valid; } | |
| // explicit conversion | |
| friend int_literal_type as_int(closure_value const& v) | |
| { | |
| switch (v.type) { | |
| case is_uint: return v.value.ui; | |
| case is_bool: return v.value.b ? 1 : 0; | |
| case is_int: break; | |
| } | |
| return v.value.i; | |
| } | |
| friend uint_literal_type as_uint(closure_value const& v) | |
| { | |
| switch (v.type) { | |
| case is_uint: return v.value.ui; | |
| case is_bool: return v.value.b ? 1 : 0; | |
| case is_int: break; | |
| } | |
| return v.value.i; | |
| } | |
| friend int_literal_type as_long(closure_value const& v) | |
| { | |
| switch (v.type) { | |
| case is_uint: return v.value.ui; | |
| case is_bool: return v.value.b ? 1 : 0; | |
| case is_int: break; | |
| } | |
| return v.value.i; | |
| } | |
| friend uint_literal_type as_ulong(closure_value const& v) | |
| { | |
| switch (v.type) { | |
| case is_uint: return v.value.ui; | |
| case is_bool: return v.value.b ? 1 : 0; | |
| case is_int: break; | |
| } | |
| return v.value.i; | |
| } | |
| friend bool as_bool(closure_value const& v) | |
| { | |
| switch (v.type) { | |
| case is_uint: return v.value.ui != 0; | |
| case is_bool: return v.value.b; | |
| case is_int: break; | |
| } | |
| return v.value.i != 0.0; | |
| } | |
| // assignment | |
| closure_value &operator= (closure_value const &rhs) | |
| { | |
| switch (rhs.get_type()) { | |
| case is_int: | |
| value.i = as_long(rhs); | |
| type = is_int; | |
| break; | |
| case is_uint: | |
| value.ui = as_ulong(rhs); | |
| type = is_uint; | |
| break; | |
| case is_bool: | |
| value.b = as_bool(rhs); | |
| type = is_bool; | |
| break; | |
| } | |
| valid = rhs.valid; | |
| return *this; | |
| } | |
| closure_value &operator= (int rhs) | |
| { | |
| type = is_int; | |
| value.i = rhs; | |
| valid = error_noerror; | |
| return *this; | |
| } | |
| closure_value &operator= (unsigned int rhs) | |
| { | |
| type = is_uint; | |
| value.ui = rhs; | |
| valid = error_noerror; | |
| return *this; | |
| } | |
| closure_value &operator= (int_literal_type rhs) | |
| { | |
| type = is_int; | |
| value.i = rhs; | |
| valid = error_noerror; | |
| return *this; | |
| } | |
| closure_value &operator= (uint_literal_type rhs) | |
| { | |
| type = is_uint; | |
| value.ui = rhs; | |
| valid = error_noerror; | |
| return *this; | |
| } | |
| closure_value &operator= (bool rhs) | |
| { | |
| type = is_bool; | |
| value.b = rhs; | |
| valid = error_noerror; | |
| return *this; | |
| } | |
| // arithmetics | |
| closure_value &operator+= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: | |
| { | |
| int_literal_type result = value.i + as_long(rhs); | |
| if ((rhs.value.i > 0L && value.i > result) || | |
| (rhs.value.i < 0L && value.i < result)) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i = result; | |
| } | |
| } | |
| break; | |
| case is_int: | |
| { | |
| int_literal_type result = value.i + rhs.value.i; | |
| if ((rhs.value.i > 0L && value.i > result) || | |
| (rhs.value.i < 0L && value.i < result)) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i = result; | |
| } | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type result = value.ui + rhs.value.ui; | |
| if (result < value.ui) { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| type = is_uint; | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type result = value.ui + as_ulong(rhs); | |
| if (result < value.ui) { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| } | |
| } | |
| break; | |
| case is_bool: | |
| value.i = value.b + as_bool(rhs); | |
| type = is_int; | |
| } | |
| valid = (value_error)(valid | rhs.valid); | |
| return *this; | |
| } | |
| closure_value &operator-= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: | |
| { | |
| int_literal_type result = value.i - as_long(rhs); | |
| if ((rhs.value.i > 0L && result > value.i) || | |
| (rhs.value.i < 0L && result < value.i)) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i = result; | |
| } | |
| } | |
| break; | |
| case is_int: | |
| { | |
| int_literal_type result = value.i - rhs.value.i; | |
| if ((rhs.value.i > 0L && result > value.i) || | |
| (rhs.value.i < 0L && result < value.i)) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i = result; | |
| } | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type result = value.ui - rhs.value.ui; | |
| if (result > value.ui) { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| type = is_uint; | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| switch(rhs.type) { | |
| case is_bool: | |
| { | |
| uint_literal_type result = value.ui - as_ulong(rhs); | |
| if (result > value.ui) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| } | |
| } | |
| break; | |
| case is_int: | |
| { | |
| uint_literal_type result = value.ui - rhs.value.i; | |
| if ((rhs.value.i > 0L && result > value.ui) || | |
| (rhs.value.i < 0L && result < value.ui)) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| } | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type result = value.ui - rhs.value.ui; | |
| if (result > value.ui) { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| case is_bool: | |
| value.i = value.b - as_bool(rhs); | |
| type = is_int; | |
| } | |
| valid = (value_error)(valid | rhs.valid); | |
| return *this; | |
| } | |
| closure_value &operator*= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: value.i *= as_long(rhs); break; | |
| case is_int: | |
| { | |
| int_literal_type result = value.i * rhs.value.i; | |
| if (0 != value.i && 0 != rhs.value.i && | |
| (result / value.i != rhs.value.i || | |
| result / rhs.value.i != value.i) | |
| ) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i = result; | |
| } | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type result = value.ui * rhs.value.ui; | |
| if (0 != value.ui && 0 != rhs.value.ui && | |
| (result / value.ui != rhs.value.ui || | |
| result / rhs.value.ui != value.ui) | |
| ) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| type = is_uint; | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type rhs_val = as_ulong(rhs); | |
| uint_literal_type result = value.ui * rhs_val; | |
| if (0 != value.ui && 0 != rhs_val && | |
| (result / value.ui != rhs_val || | |
| result / rhs_val != value.ui) | |
| ) | |
| { | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.ui = result; | |
| type = is_uint; | |
| } | |
| } | |
| break; | |
| case is_bool: | |
| switch (rhs.type) { | |
| case is_int: | |
| value.i = (value.b ? 1 : 0) * rhs.value.i; | |
| type = is_int; | |
| break; | |
| case is_uint: | |
| value.ui = (value.b ? 1 : 0) * rhs.value.ui; | |
| type = is_uint; | |
| break; | |
| case is_bool: | |
| value.b = 0 != ((value.b ? 1 : 0) * (rhs.value.b ? 1 : 0)); | |
| break; | |
| } | |
| } | |
| valid = (value_error)(valid | rhs.valid); | |
| return *this; | |
| } | |
| closure_value &operator/= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| if (as_long(rhs) != 0) { | |
| if (value.i == -value.i && -1 == rhs.value.i) { | |
| // LONG_MIN / -1 on two's complement | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i /= as_long(rhs); | |
| } | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| break; | |
| case is_uint: | |
| if (rhs.value.ui != 0) { | |
| value.ui /= rhs.value.ui; | |
| type = is_uint; | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| if (as_ulong(rhs) != 0) | |
| value.ui /= as_ulong(rhs); | |
| else | |
| valid = error_division_by_zero; // division by zero | |
| break; | |
| case is_bool: | |
| if (as_bool(rhs)) { | |
| switch(rhs.type) { | |
| case is_int: | |
| value.i = (value.b ? 1 : 0) / rhs.value.i; | |
| type = is_int; | |
| break; | |
| case is_uint: | |
| value.i = (value.b ? 1 : 0) / rhs.value.ui; | |
| type = is_int; | |
| break; | |
| case is_bool: | |
| break; | |
| } | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| } | |
| return *this; | |
| } | |
| closure_value &operator%= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| if (as_long(rhs) != 0) { | |
| if (value.i == -value.i && -1 == rhs.value.i) { | |
| // LONG_MIN % -1 on two's complement | |
| valid = error_integer_overflow; | |
| } | |
| else { | |
| value.i %= as_long(rhs); | |
| } | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| break; | |
| case is_uint: | |
| if (rhs.value.ui != 0) { | |
| value.ui %= rhs.value.ui; | |
| type = is_uint; | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| if (as_ulong(rhs) != 0) | |
| value.ui %= as_ulong(rhs); | |
| else | |
| valid = error_division_by_zero; // division by zero | |
| break; | |
| case is_bool: | |
| if (as_bool(rhs)) { | |
| switch(rhs.type) { | |
| case is_int: | |
| value.i = (value.b ? 1 : 0) % rhs.value.i; | |
| type = is_int; | |
| break; | |
| case is_uint: | |
| value.i = (value.b ? 1 : 0) % rhs.value.ui; | |
| type = is_int; | |
| break; | |
| case is_bool: | |
| break; | |
| } | |
| } | |
| else { | |
| valid = error_division_by_zero; // division by zero | |
| } | |
| } | |
| return *this; | |
| } | |
| friend closure_value | |
| operator- (closure_value const &rhs) | |
| { | |
| switch (rhs.type) { | |
| case is_int: | |
| { | |
| int_literal_type value = as_long(rhs); | |
| if (value != 0 && value == -value) | |
| return closure_value(-value, error_integer_overflow); | |
| return closure_value(-value, rhs.valid); | |
| } | |
| case is_bool: return closure_value(-as_long(rhs), rhs.valid); | |
| case is_uint: break; | |
| } | |
| int_literal_type value = as_ulong(rhs); | |
| if (value != 0 && value == -value) | |
| return closure_value(-value, error_integer_overflow); | |
| return closure_value(-value, rhs.valid); | |
| } | |
| friend closure_value | |
| operator~ (closure_value const &rhs) | |
| { | |
| return closure_value(~as_ulong(rhs), rhs.valid); | |
| } | |
| friend closure_value | |
| operator! (closure_value const &rhs) | |
| { | |
| switch (rhs.type) { | |
| case is_int: return closure_value(!as_long(rhs), rhs.valid); | |
| case is_bool: return closure_value(!as_bool(rhs), rhs.valid); | |
| case is_uint: break; | |
| } | |
| return closure_value(!as_ulong(rhs), rhs.valid); | |
| } | |
| // comparison | |
| friend closure_value | |
| operator== (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| bool cmp = false; | |
| switch (lhs.type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: cmp = as_bool(lhs) == rhs.value.b; break; | |
| case is_int: cmp = lhs.value.i == rhs.value.i; break; | |
| case is_uint: cmp = lhs.value.ui == rhs.value.ui; break; | |
| } | |
| break; | |
| case is_uint: cmp = lhs.value.ui == as_ulong(rhs); break; | |
| case is_bool: cmp = lhs.value.b == as_bool(rhs); break; | |
| } | |
| return closure_value(cmp, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator!= (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| return closure_value(!as_bool(lhs == rhs), (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator> (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| bool cmp = false; | |
| switch (lhs.type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: cmp = lhs.value.i > as_long(rhs); break; | |
| case is_int: cmp = lhs.value.i > rhs.value.i; break; | |
| case is_uint: cmp = lhs.value.ui > rhs.value.ui; break; | |
| } | |
| break; | |
| case is_uint: cmp = lhs.value.ui > as_ulong(rhs); break; | |
| case is_bool: cmp = lhs.value.b > as_bool(rhs); break; | |
| } | |
| return closure_value(cmp, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator< (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| bool cmp = false; | |
| switch (lhs.type) { | |
| case is_int: | |
| switch(rhs.type) { | |
| case is_bool: cmp = lhs.value.i < as_long(rhs); break; | |
| case is_int: cmp = lhs.value.i < rhs.value.i; break; | |
| case is_uint: cmp = lhs.value.ui < rhs.value.ui; break; | |
| } | |
| break; | |
| case is_uint: cmp = lhs.value.ui < as_ulong(rhs); break; | |
| case is_bool: cmp = as_bool(lhs) < as_bool(rhs); break; | |
| } | |
| return closure_value(cmp, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator<= (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| return closure_value(!as_bool(lhs > rhs), (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator>= (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| return closure_value(!as_bool(lhs < rhs), (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| closure_value & | |
| operator<<= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_bool: | |
| case is_int: | |
| switch (rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| { | |
| int_literal_type shift_by = as_long(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| else if (shift_by < -64) | |
| shift_by = -64; | |
| value.i <<= shift_by; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type shift_by = as_ulong(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| value.ui <<= shift_by; | |
| // Note: The usual arithmetic conversions are not performed on | |
| // bit shift operations. | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| switch (rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| { | |
| int_literal_type shift_by = as_long(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| else if (shift_by < -64) | |
| shift_by = -64; | |
| value.ui <<= shift_by; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type shift_by = as_ulong(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| value.ui <<= shift_by; | |
| } | |
| break; | |
| } | |
| } | |
| valid = (value_error)(valid | rhs.valid); | |
| return *this; | |
| } | |
| closure_value & | |
| operator>>= (closure_value const &rhs) | |
| { | |
| switch (type) { | |
| case is_bool: | |
| case is_int: | |
| switch (rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| { | |
| int_literal_type shift_by = as_long(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| else if (shift_by < -64) | |
| shift_by = -64; | |
| value.i >>= shift_by; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type shift_by = as_ulong(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| value.ui >>= shift_by; | |
| // Note: The usual arithmetic conversions are not performed on | |
| // bit shift operations. | |
| } | |
| break; | |
| } | |
| break; | |
| case is_uint: | |
| switch (rhs.type) { | |
| case is_bool: | |
| case is_int: | |
| { | |
| int_literal_type shift_by = as_long(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| else if (shift_by < -64) | |
| shift_by = -64; | |
| value.ui >>= shift_by; | |
| } | |
| break; | |
| case is_uint: | |
| { | |
| uint_literal_type shift_by = as_ulong(rhs); | |
| if (shift_by > 64) | |
| shift_by = 64; | |
| value.ui >>= shift_by; | |
| } | |
| break; | |
| } | |
| break; | |
| } | |
| valid = (value_error)(valid | rhs.valid); | |
| return *this; | |
| } | |
| friend closure_value | |
| operator|| (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| bool result = as_bool(lhs) || as_bool(rhs); | |
| return closure_value(result, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator&& (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| bool result = as_bool(lhs) && as_bool(rhs); | |
| return closure_value(result, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator| (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| uint_literal_type result = as_ulong(lhs) | as_ulong(rhs); | |
| return closure_value(result, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator& (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| uint_literal_type result = as_ulong(lhs) & as_ulong(rhs); | |
| return closure_value(result, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| friend closure_value | |
| operator^ (closure_value const &lhs, closure_value const &rhs) | |
| { | |
| uint_literal_type result = as_ulong(lhs) ^ as_ulong(rhs); | |
| return closure_value(result, (value_error)(lhs.valid | rhs.valid)); | |
| } | |
| // handle the ?: operator | |
| closure_value & | |
| handle_questionmark(closure_value const &cond, closure_value const &val2) | |
| { | |
| switch (type) { | |
| case is_int: | |
| switch (val2.type) { | |
| case is_bool: value.b = as_bool(cond) ? value.b : as_bool(val2); break; | |
| case is_int: value.i = as_bool(cond) ? value.i : as_long(val2); break; | |
| case is_uint: | |
| value.ui = as_bool(cond) ? value.ui : as_ulong(val2); | |
| type = is_uint; // changing type! | |
| break; | |
| } | |
| break; | |
| case is_uint: value.ui = as_bool(cond) ? value.ui : as_ulong(val2); break; | |
| case is_bool: value.b = as_bool(cond) ? value.b : as_bool(val2); break; | |
| } | |
| valid = as_bool(cond) ? valid : val2.valid; | |
| return *this; | |
| } | |
| #if defined (BOOST_SPIRIT_DEBUG) | |
| friend std::ostream& | |
| operator<< (std::ostream &o, closure_value const &val) | |
| { | |
| switch (val.type) { | |
| case is_int: o << "int(" << as_long(val) << ")"; break; | |
| case is_uint: o << "unsigned int(" << as_ulong(val) << ")"; break; | |
| case is_bool: o << "bool(" << as_bool(val) << ")"; break; | |
| } | |
| return o; | |
| } | |
| #endif // defined(BOOST_SPIRIT_DEBUG) | |
| private: | |
| value_type type; | |
| union { | |
| int_literal_type i; | |
| uint_literal_type ui; | |
| bool b; | |
| } value; | |
| value_error valid; | |
| }; | |
| /////////////////////////////////////////////////////////////////////////////// | |
| } // namespace closures | |
| } // namespace grammars | |
| } // namespace wave | |
| } // namespace boost | |
| // the suffix header occurs after all of the code | |
| #ifdef BOOST_HAS_ABI_HEADERS | |
| #include BOOST_ABI_SUFFIX | |
| #endif | |
| #endif // !defined(CPP_EXPRESSION_VALUE_HPP_452FE66D_8754_4107_AF1E_E42255A0C18A_INCLUDED) |