Mail Archives: cygwin/1999/01/19/18:27:17
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typedef char bmp_t[480][640];
void main() {
bmp_t*bmp=3Dnew bmp_t;
}
results in...
test.cc: In function `int main(...)':
test.cc:4: initialization to `char (*)[480][640]' from `char (*)[640]'
This occures in 3 different compilers (including non gnu-cpp), so mabey =
typedef was not intended to be used this way.
It does appear to be a bogus error though.
the only good workaround I found is to create a macro that typecasts =
another type
#define new2(a) ((a*)(new char[sizeof(a)]))
bmp_t*bmp=3Dnew2 (bmp_t);
Louie Gosselin
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>typedef char =
bmp_t[480][640];</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>void main() {<BR> =
bmp_t*bmp=3Dnew=20
bmp_t;<BR>}</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>results in...</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>test.cc: In function `int=20
main(...)':<BR>test.cc:4: initialization to `char (*)[480][640]' from =
`char=20
(*)[640]'<BR></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>This occures in 3 different =
compilers (including=20
non gnu-cpp), so mabey typedef was not intended to be used this=20
way.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>It does appear to be a bogus error=20
though.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>the only good workaround I found is =
to create a=20
macro that typecasts another type</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>#define new2(a) ((a*)(new=20
char[sizeof(a)]))<BR></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>bmp_t*bmp=3Dnew2 =
(bmp_t);<BR></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Louie =
Gosselin</FONT></DIV></BODY></HTML>
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