Clarify that the value of getc() etc. is an unsigned char converted

to an int (as per the C standard) i.e. it can be passed straight to isalpha() etc. Approved by: dwmalone (mentor) MFC after: 3 days
2002-05-15 16:55:58 +00:00 · 2002-05-15 16:55:58 +00:00 · 578642c931
commit 578642c931
parent 3609bfaab7
1 changed files with 4 additions and 0 deletions
--- a/lib/libc/stdio/getc.3
+++ b/lib/libc/stdio/getc.3
@ -91,6 +91,10 @@ from the stream pointed at by
 If successful, these routines return the next requested object
 from the
 .Fa stream .
+Character values are returned as an
+.Li unsigned char
+converted to an
+.Li int .
 If the stream is at end-of-file or a read error occurs,
 the routines return
 .Dv EOF .