DrawTextToScreen takes STR16, a mutable wchar_t*, for a string it only
measures and prints. Quest Debug System.cpp picks its text with a conditional:
DrawTextToScreen( gubFact[ usLoop1 ] ? L"True" : L"False", ... );
which has type const wchar_t*. clang-cl's MSVC compatibility lets a bare
string literal decay to wchar_t*, but not a const wchar_t* expression, so it
reports
error: no matching function for call to 'DrawTextToScreen'
note: candidate function not viable: 1st argument ('const wchar_t *')
would lose const qualifier
The parameter is const-correct in every function DrawTextToScreen hands the
string on to, so the change follows the string down the call chain rather
than stopping at the top:
DrawTextToScreen, ShadowText Utils/WordWrap.h
WFStringPixLength Utils/Font Control.h
mprintf, StringPixLength, sgp/Font.h
VarFindFontCenterCoordinates,
VarFindFontRightCoordinates
WinFontStringPixLength sgp/WinFont.h
gprintfdirty TileEngine/Render Dirty.h
The varargs members of that list copy the format string into a local buffer
before doing anything with it, and the measuring ones walk it and return a
width; none of the nine assigns through the parameter. Where StringPixLength
casts the string to UINT16* to walk it, the cast and the local now carry the
const rather than dropping it.
Callers are unaffected: every one already passes something that converts to
const CHAR16*. Both configurations build with no new diagnostics, and the
parse sweep drops from 9 error sites in 7 files to 5 in 3.
To check the claim that nothing writes through these parameters, read the
nine bodies; each is short.
This one is big, but unless I missed something, should be all be
trivial.
scripted-diff with the following, then manually tweaked whatever needed:
```
if [ $# -ne 3 ]; then
echo "Usage: $0 '<pattern>' '<replacement>' '<filename>'"
exit 1
fi
pattern="$1"
replacement="$2"
filename="$3"
if [ ! -f "$filename" ]; then
echo "Error: File $filename does not exist."
exit 1
fi
sed -i '/'"$pattern"'/ {
:loop
$ !{
N
/'"$pattern"'.*\n.*#endif/ {
s/'"$pattern"'/'"$replacement"'/
s/#else/} else {/
s/#endif/}/
P
D
}
/'"$pattern"'/ b loop
}
}' "$filename"
echo "Replacement complete in $filename"
```
h/t to Grok2 for the sed command
Marco Antonio J. Costaandmajcosta
BeatAroundTheBuscherandGitHub