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cppdraft/errno/general.md

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+[errno.general]
+
+# 19 Diagnostics library [[diagnostics]](./#diagnostics)
+
+## 19.4 Error numbers [[errno]](errno#general)
+
+### 19.4.1 General [errno.general]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/diagnostics.tex#L522)
+
+The contents of the header <cerrno> are the same as the POSIX header[<errno.h>](support.c.headers.general#header:%3cerrno.h%3e "17.15.1 General [support.c.headers.general]"), except that errno shall be defined as a macro[.](#1.sentence-1)
+
+[*Note [1](#note-1)*:
+
+The intent is to remain in close alignment with the POSIX standard[.](#1.sentence-2)
+
+— *end note*]
+
+A separate errno value is provided for each thread[.](#1.sentence-3)