[Tinycc-devel] sizeof (long double) vs sizeof (double)

[Mads]

I wish to use extended precision in functions compiled by tcc during execution.

Unfortunately, it appears that for any functions compiled by tcc, sizeof (double) == sizeof (long double)  - and I haven't got the slightest clue whether it's intended, if it's a bug or if I'm missing some flags.

Specifications:

tcc (latest version 2014-08-01 http://repo.or.cz/w/tinycc.git/shortlog ) compiled with msys mingw (using command: ./configure [--prefix installpath])

Test code ( http://pastebin.com/yiSDFfYU ) is compiled with gcc (codeblocks, 64bit, windows 7).

tcc-compiled code:

char my_program[] =

"int GetLongDoubleSize(int n)\n"

"{\n"

"    return sizeof(long double);\n" //returns 8

"}\n"

"int GetDoubleSize(int n)\n"

"{\n"

"    return sizeof(double);\n" //returns 8

"}\n";

Output:

----- tcc compiled 'char program':

Long Double size: 8

Double size: 8

----- gcc compiled functions:

gcc Long Double size: 12

gcc Double size: 8