i need a source code compute logical expressions in lex/yacc

[deltaa5]

Hi.
i need a source code compute logical expressions in lex/yacc.
for Example:
(20>5) or (6<=6)--->true
(1<=2) and (3==1) --->false.

[Rolf Magnus]

Re: i need a source code compute logical expressions in lex/yacc

deltaa5 wrote:

Hi.
i need a source code compute logical expressions in lex/yacc.

And your C++ language question is...?

for Example:
(20>5) or (6<=6)--->true
(1<=2) and (3==1) --->false.

Doesn't look so logical to me.

[Ondra Holub]

Re: i need a source code compute logical expressions in lex/yacc


deltaa5 napsal:

Hi.
i need a source code compute logical expressions in lex/yacc.
for Example:
(20>5) or (6<=6)--->true
(1<=2) and (3==1) --->false.

You can reuse example in bison manual. See

http://www.gnu.org/software/bison/manual/html_mono/bison.html#Infix-Calc

it does almost the same you need, you have to change only operations.