c++ Programming Glossary: expr

Boolean expression (grammar) parser in c++

http://stackoverflow.com/questions/8706356/boolean-expression-grammar-parser-in-c

expression grammar parser in c I want to parse a boolean expression.. expression grammar parser in c I want to parse a boolean expression in C . Input form a and b xor c and d or a and b I just.. a and b xor c and d or a and b I just want to parse this expression into a tree knowing the precedence rule not and xor or..

What is the equivalent of CPython string concatenation, in C++? [duplicate]

http://stackoverflow.com/questions/13021985/what-is-the-equivalent-of-cpython-string-concatenation-in-c

foo s print s a 'alpha' b 'beta' c 'charlie' foo a b c # Expr like linear time string building. correspond to roughly #include.. string const b beta string const c charlie foo S a b c Expr like linear time string building. share improve this answer..

Filter the synthesized attribute through a std::map in a boost spirit semantic action

http://stackoverflow.com/questions/14205154/filter-the-synthesized-attribute-through-a-stdmap-in-a-boost-spirit-semantic-a

boost spirit qi rule Iterator T1 define boost mpl false_ Expr boost spirit qi rule Iterator T1 con st Expr boost mpl true_.. mpl false_ Expr boost spirit qi rule Iterator T1 con st Expr boost mpl true_ ' being compiled with Iterator std _String_iterator.. char_traits char std allocator char T1 unsigned int void Expr boost proto exprns_ expr boost proto tagns_ tag subscript boost..

Intermediate results using expression templates

http://stackoverflow.com/questions/1666176/intermediate-results-using-expression-templates

early she may be forced to declare a complicated type like Expression Expression Array plus Array plus Expression Array minus.. be forced to declare a complicated type like Expression Expression Array plus Array plus Expression Array minus Array intermediate.. type like Expression Expression Array plus Array plus Expression Array minus Array intermediate a b c d or worse . Notice..

How to parse text for a DSL at compile time?

http://stackoverflow.com/questions/17783393/how-to-parse-text-for-a-dsl-at-compile-time

a b c Create a lazily evaluated structure with it Expr expr magical_function expression_text then later on evaluate.. args return calculator_context Args args template typename Expr typename ... Args int evaluate const Expr expr const Args ..... typename Expr typename ... Args int evaluate const Expr expr const Args ... args return boost proto eval expr make_context..

Spirit unable to assign attribute to single-element struct (or fusion sequence)

http://stackoverflow.com/questions/7770791/spirit-unable-to-assign-attribute-to-single-element-struct-or-fusion-sequence

here define mpl true_ r expr traits matches qi domain Expr ^ .. reduced example reduced.cpp 23 9 note in instantiation.. here define mpl true_ r expr traits matches qi domain Expr ^ .. reduced example reduced.cpp 23 9 note in instantiation..