commit f9e3e09fdc93be9f0d47afbc6c7df1188c2a5a0d
author Bram Moolenaar <Bram@vim.org> Sun Jan 13 23:38:42 2019 +0100
committer Bram Moolenaar <Bram@vim.org> Sun Jan 13 23:38:42 2019 +0100
tree a6b07005c19279a4f5d01be14f14861c2657fa95
parent 05500ece6282407f9f7227aaf564e24147326863

patch 8.1.0743: giving error messages is not flexible

Problem:    Giving error messages is not flexible.
Solution:   Add semsg().  Change argument from "char_u *" to "char *", also
            for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
            #3302)  Also make emsg() accept a "char *" argument.  Get rid of
            an enormous number of type casts.

src/proto.h

diff --git a/src/proto.h b/src/proto.h
index af34dc9..653c089 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -108,25 +108,25 @@
 #  ifdef __BORLANDC__
 _RTLENTRYF
 #  endif
-smsg(char_u *, ...);
+smsg(const char *, ...);
 
 int
 #  ifdef __BORLANDC__
 _RTLENTRYF
 #  endif
-smsg_attr(int, char_u *, ...);
+smsg_attr(int, const char *, ...);
 
 int
 #  ifdef __BORLANDC__
 _RTLENTRYF
 #  endif
-smsg_attr_keep(int, char_u *, ...);
+smsg_attr_keep(int, const char *, ...);
 
 int
 #  ifdef __BORLANDC__
 _RTLENTRYF
 #  endif
-vim_snprintf_add(char *, size_t, char *, ...)
+vim_snprintf_add(char *, size_t, const char *, ...)
 #ifdef USE_PRINTF_FORMAT_ATTRIBUTE
     __attribute__((format(printf, 3, 4)))
 #endif
@@ -136,14 +136,14 @@
 #  ifdef __BORLANDC__
 _RTLENTRYF
 #  endif
-vim_snprintf(char *, size_t, char *, ...)
+vim_snprintf(char *, size_t, const char *, ...)
 #ifdef USE_PRINTF_FORMAT_ATTRIBUTE
     __attribute__((format(printf, 3, 4)))
 #endif
     ;
 
-int vim_vsnprintf(char *str, size_t str_m, char *fmt, va_list ap);
-int vim_vsnprintf_typval(char *str, size_t str_m, char *fmt, va_list ap, typval_T *tvs);
+int vim_vsnprintf(char *str, size_t str_m, const char *fmt, va_list ap);
+int vim_vsnprintf_typval(char *str, size_t str_m, const char *fmt, va_list ap, typval_T *tvs);
 
 # include "message.pro"
 # include "misc1.pro"