From an email to cxxeditor@ from Guilliam Xavier:

Hello Mr. Du Toit,

While reading Annex C (informative) Compatibility [diff] in N3690, I noticed some typos and other problems. One of them has been recently fixed in the Git repository (wrong C headers count) but there are more. I don't have a GitHub account for now so here's an email.

First, I am attaching some editorial fixes. The modifications are all located in the source file "compatibility.tex" (current version, last change to the file on GitHub draft repository was commit a7e0895 "[diff.mods.to.headers] Remove redundant (and wrong) count of C headers." of Sep 26, 2013).
#1.diff

Editorial fixes that I think should be applied.

• [diff.basic] [diff.expr] [diff.dcl] Add an effective line break (4 locations).
• [diff.basic] Delete spurious \rationale macro in \difficulty text.
• [diff.basic] Insert missing space between words.
• [diff.basic] [diff.cpp03.conv] Add a final period for consistency (5 locations).
• [diff.expr] Remove "a" article for consistency.
• [diff.dcl] [diff.class] Replace "C++" with the \Cpp macro (2 locations).
• [diff.class] Fix typo "choise" -> "choice".
• [diff.class] Replace "Change of semantics of" with "Change to semantics of" for consistency.
• [diff.special] Make example really "valid in ISO C" by using copy-initialization syntax.
• [diff.cpp03.lex] Fix typo "tokens" -> "token" ("a single preprocessing token").
• [diff.cpp03.library] Fix typo "in This" -> "in this" (lowercase T).
• [diff.cpp03.containers] Fix wrong macro use \effects -> \effect.
  Make the standard build on OS X with macports sed. #2.diff

Editorial fixes that I am less sure about.

• [diff.basic] Format "Main" in code font ("main").
• [diff.expr] Remove extra space before period.
• [diff.dcl] Format "const" in code font.

(For that last one, an alternative would be to capitalize "const" to "Const".)
#3.diff

Editorial fix for consistency. Among the 67 "Change:" headings, 58 don't end the first line with a period, but 9 do; that feels somewhat inconsistent. As for whether add 58 periods or remove 9, the second alternative is a smaller change.

• [diff.dcl] [diff.decl] [diff.class] [diff.cpp03.special] [diff.cpp11.dcl.dcl] Remove final period for consistency (9 locations).

Note: when trying to apply the patches, I saw that 2.diff can only be applied after 1.diff has been applied.

Feel free to tweak the modifications.

Additionally, in [diff.library], paragraph 4 reads "The C++ standard library provides 57 standard values from the C library, as shown in Table 150." but Table 150 shows 45 values, not 57 (Table 149 does show 57 standard macros, so that looks like a problem of copy-paste from paragraph 2).
But that's not all to it, because the tables in this section (Tables 149 to 153) seem to be incomplete: Table 149 is missing e.g. HUGE_VALF from Table 119 [c.math], Table 150 is missing e.g. LLONG_MIN from Table 31 and DECIMAL_DIG from Table 32 [c.limits], Table 153 is missing e.g. strtoll from Table 78 [c.strings]... (sorry, I don't know how to make a list that we could be confident is complete, so I just picked one random instance in some tables).

I would be pleased if you can give me some feedback.

Thank you. Best regards