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我尝试编写编译和运行我的第一个 nimrod 程序的 fizzbuzz。

Nimrod 是从 git 安装的，版本是。

[sayth nimrod]$  nimrod --version
Nimrod Compiler Version 0.9.4 (2014-04-28) [Linux: amd64]
Copyright (c) 2006-2014 by Andreas Rumpf

所以这是一个嘶嘶声

proc fizzBuzz(x, y: int) =
        for i in x .. y:
                if i mod 15 == 0:
                        echo("FizzBuzz")
                elif i mod 3 == 0:
                        echo("Fizz")
                elif i mod 5 == 0:
                        echo("Buzz")
                else:
                        echo(i)

我编译为 c （有更好的选择吗？），对我来说似乎没问题。

[sayth nimrod]$  nimrod c fizzbuzz.nim 
config/nimrod.cfg(37, 2) Hint: added path: '/home/sayth/.babel/pkgs/' [Path]
Hint: used config file '/home/sayth/Nimrod/config/nimrod.cfg' [Conf]
Hint: system [Processing]
Hint: fizzbuzz [Processing]
fizzbuzz.nim(1, 5) Hint: 'fizzbuzz.fizzBuzz(x: int, y: int)' is declared but not used [XDeclaredButNotUsed]
gcc -c  -w  -I/home/sayth/Nimrod/lib -o /home/sayth/Scripts/nimrod/nimcache/fizzbuzz.o /home/sayth/Scripts/nimrod/nimcache/fizzbuzz.c 
gcc -c  -w  -I/home/sayth/Nimrod/lib -o /home/sayth/Scripts/nimrod/nimcache/stdlib_system.o /home/sayth/Scripts/nimrod/nimcache/stdlib_system.c 
gcc   -o /home/sayth/Scripts/nimrod/fizzbuzz  /home/sayth/Scripts/nimrod/nimcache/stdlib_system.o /home/sayth/Scripts/nimrod/nimcache/fizzbuzz.o  -ldl
Hint: operation successful (8181 lines compiled; 1.065 sec total; 13.138MB) [SuccessX]

但是运行它不会产生任何输出。有什么我做错了吗？

[sayth nimrod]$  ./fizzbuzz
[sayth nimrod]$
4

1 回答 1

6

你只是忘了叫它。注意编译器提示：

fizzbuzz.nim(1, 5) Hint: 'fizzbuzz.fizzBuzz(x: int, y: int)' is declared but not used [XDeclaredButNotUsed]

不，你最好的选择是编译成 C。将来可能会有一个 LLVM 后端，但普遍的看法是，它比它的价值更麻烦。中间 C 输出更便携（gcc 在比 LLVM 更多的平台上运行），您可以选择最能优化您的代码的编译器。

于 2014-04-28T00:49:05.397 回答