Comment by seiji | Hacker News Reader

Comment by seiji | Hacker News Reader

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ptrdiff_t is signed (because subtraction). size_t is unsigned (because length).

This page is a much shorter summary than the article: http://www.gnu.org/software/libc/manual/html_node/Important-...

Also an important note: if you use special types like ptrdiff_t and size_t, you must not use the underlying native type printf specifiers when printing them. e.g. never print a ptrdiff_t using %ld, use the ptrdiff_t format specifier %td. (because some systems may say ptrdiff_t is long while others may say long long, and all your printf strings will then print compile time warnings.) Also see https://en.wikipedia.org/wiki/Printf_format_string#Length_fi...

Plus, the medium article is a complete copy/paste of this 2009 article: http://www.viva64.com/en/a/0050/ — looks like the account https://news.ycombinator.com/user?id=PVS-Studio is copying from viva64 and posting to medium for a lot of old articles.

Article republished by the author’s permission.

I guess that is one way to write articles.

The author of the original article is one Andrey Karpov. The Medium article is posted by someone called Sergey Vasiliev Marina Makarova and Andrey Karpov recommend". I guess it's the same Andrey Karpov in both cases, especially as hovering over the name Andrey Karpov on the Medium article indicates that his username is "Code_Analysis" and the original article was posted on the blog of a static-code-analysis company.

Seems legit unless someone's actually impersonating someone else. I don't quite understand why, if Karpov wrote the original article and is a Medium contributor, Vasiliev rather than Karpov should be doing the reposting. (You could imagine something like this: K is a senior technical guy at PVS-Studio, V is a more junior technical guy or is in the marketing department; in 2009 they thought it better to post things under K's name to get it out there, but now K wants only the more impressive articles under his name and lets V post the others. But this doesn't feel terribly plausible.)

OMG! It is a great conspiracy theory! Everything is clear. Much time has elapsed since then, many people didn't read old articles about 64-bit. But these articles are useful and as we can see attract interest. Plus, the audience has changed. We would like to share with new one a good material. It is impossible to share old link that is why we decided republish some good articles in new places. This information will be interesting for recruits.

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