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日期:2024-11-14
2012年5月13日 - Use boost library (lexical_cast.hpp) bool a = boost::lexical_cast("true"); //true bool b = boost::lexical_cast("0"); //false. Or go here num_get ......
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日期:2024-11-12
2009年3月10日 - I'm mostly interested on C++, an answer also for C would be great. ... Does the standard indicate the evaluation order of this expression?...
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日期:2024-11-08
2011年4月15日 - Yes, it's guaranteed, otherwise such operators would lose much of their usefulness. Relevant standard quotations: §5.14 ¶1. Unlike & , && guarantees ......
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日期:2024-11-12
2012年5月30日 - However, if you type it again, it goes on to evaluate the input. Why? – congalong May 30 ... Boolean expression parse and evaluation in C++....
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日期:2024-11-08
In some programming languages (Lisp), the usual Boolean operators are short-circuit. ... The short-circuit expression x Sand y (using Sand to denote the short-circuit ... In imperative language terms (notably C and C++), where side effects are ......
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日期:2024-11-10
C++ Language and Standard Libraries · C/C++ Languages ... Expressions with higher-precedence operators are evaluated first. Precedence can also be ......
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日期:2024-11-10
I am writing a program to read a bunch of text and perform boolean operations on it and outputting the result. e.g "T F && T || ... C and C++ FAQ; Forum Actions ... My only problem is that evaluation of expressions is not working....
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日期:2024-11-10
and would like to evaluate them to a true/false boolean. My dear gcc ... Standard math/c++ set of expressions, i would say, ie: ,>=,...