programming-languages

问题 The following programming languages question seems really unclear and what it wants me to do is not obvious to me, could somebody help me to understand it? The question: Implement part of a recursive descent parser for a simple set of language rules. Use any programming language for the implementation; if it isn’t a common language, please make a note of which language it is in a comment. You should implement functions for each of the nonterminal symbols and, using the following rules that

问题 The following programming languages question seems really unclear and what it wants me to do is not obvious to me, could somebody help me to understand it? The question: Implement part of a recursive descent parser for a simple set of language rules. Use any programming language for the implementation; if it isn’t a common language, please make a note of which language it is in a comment. You should implement functions for each of the nonterminal symbols and, using the following rules that

问题 The following programming languages question seems really unclear and what it wants me to do is not obvious to me, could somebody help me to understand it? The question: Implement part of a recursive descent parser for a simple set of language rules. Use any programming language for the implementation; if it isn’t a common language, please make a note of which language it is in a comment. You should implement functions for each of the nonterminal symbols and, using the following rules that

问题 I can't seem to find a direct answer on this. Using several search engines gives me very vague results, or only answers half the question. So, to elaborate, when you write a program and it's compiled/interpreted, does the computer read each line sequentially in chronological order or does it skip around by default? Example: Using C-style source because it was the first thing that came to mind. printf("I'm the first line of your program! Yay!"); printf("I'm the second, woo!"); printf("And I'm

问题 I can't seem to find a direct answer on this. Using several search engines gives me very vague results, or only answers half the question. So, to elaborate, when you write a program and it's compiled/interpreted, does the computer read each line sequentially in chronological order or does it skip around by default? Example: Using C-style source because it was the first thing that came to mind. printf("I'm the first line of your program! Yay!"); printf("I'm the second, woo!"); printf("And I'm

问题 I know C++. Anything other? 回答1: Wikipedia's article on Operator Overloading features a list of languages that support it. 回答2: I'm amused thinking about it. Any C compiler for example, must tell between an int *c; and double d = (int) f * (float) g; . In the former case, * indicates c is a pointer to int while in the latter case it is a multiplication operator. Though not exported outside the compiler itself, C appears to have operator overloading feature. C++ exported it outside the

问题 I know C++. Anything other? 回答1: Wikipedia's article on Operator Overloading features a list of languages that support it. 回答2: I'm amused thinking about it. Any C compiler for example, must tell between an int *c; and double d = (int) f * (float) g; . In the former case, * indicates c is a pointer to int while in the latter case it is a multiplication operator. Though not exported outside the compiler itself, C appears to have operator overloading feature. C++ exported it outside the

问题 I know C++. Anything other? 回答1: Wikipedia's article on Operator Overloading features a list of languages that support it. 回答2: I'm amused thinking about it. Any C compiler for example, must tell between an int *c; and double d = (int) f * (float) g; . In the former case, * indicates c is a pointer to int while in the latter case it is a multiplication operator. Though not exported outside the compiler itself, C appears to have operator overloading feature. C++ exported it outside the

问题 I know C++. Anything other? 回答1: Wikipedia's article on Operator Overloading features a list of languages that support it. 回答2: I'm amused thinking about it. Any C compiler for example, must tell between an int *c; and double d = (int) f * (float) g; . In the former case, * indicates c is a pointer to int while in the latter case it is a multiplication operator. Though not exported outside the compiler itself, C appears to have operator overloading feature. C++ exported it outside the

问题 Following my previous post here , I tried to do what was suggested and convert the code into a Tail-recursion method with let . The original code - which does not work (due to using val inside if condition) : fun func() = val decimal = 0 (* the final result *) val multiple = 0 (* keeps track of multiples, eg. In XXV, X would be a multiple *) val current = 0 (* the digit currently being processed *) val top = 0 (* value of the last element in the list *) val last_add = 0 (* the last digit that