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原标题:Counting columns of a space separated file

My question concerns the use of std::count (or another appropriate function) to count the columns of a space separated file.

我现在这样说:

  std::ifstream inFile("file"); 
  int lines = std::count(std::istreambuf_iterator<char>(inFile), 
             std::istreambuf_iterator<char>(),  
 );

to count the lines.

由于所有线上都相同(数据数量相同),因此类似。

  std::ifstream inFile("file"); 
  int columns = std::count(std::istreambuf_iterator<char>(inFile), 
             std::istreambuf_iterator<char>( 
 ),    ) + 1;

我需要的是什么?

增 编

EDIT:

我指的是,如果在<代码>>上“>file”有数据,如<代码>1 2或1 [此处为] 2,则该数值为<代码>columns。 是否有任何途径?

最佳回答

页: 1 http://www.boost.org/doc/libs/1_47_0/libs/tokenizer/“rel=“nofollow”>boost:tokenizer/a。

问题回答

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