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Alex Rivera
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I've always assumed it to be more efficient, when processing text files, to first read the contents (or part of it) into an std::string or char array, as — from my limited understanding — files are read from memory in blocks much larger than the size of a single character. However, I've heard that modern OS's are often not actually directly reading from the file anyway, making my manually buffering the input little benefit. Say I wanted to determine the number of a certain character in a text file. Would the following be inefficient? while (fin.get(ch)) { if (ch == 'n') ++char_count; } Granted, I guess it would depend on file size, but does anyone have any general rules about what's the best approach?
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