Opened 10 years ago

Closed 10 years ago

#479 closed bug (fixed)

Singular fails to build with GCC 4.7.x on Solaris

Reported by: not.really@… Owned by: somebody
Priority: trivial Milestone: 3-2-0 and higher
Component: singular-kernel Version: 3-1-6
Keywords: floor log10 ambiguous SunOS bigintmat Cc: not.really@…


This is because on Solaris, a couple of C math (and stdlib) functions get overloaded if __cplusplus >= 199711L (which is the case with GCC 4.7.x), and pulled into the global namespace, such that calling e.g. floor() or log10() with an int, which is done in kernel/, gets ambiguous.

Cf. Sage trac ticket #14295 (where one can find a patch against Singular 3-1-5 as well).

This applies to Singular 3-1-5 as well as 3-1-6, where the latter adds another ambiguous call to floor().

The fix is obvious; just use floor((double)(...) and log10((double)(...)) where appropriate.

P.S.: Using floor() in int ci = floor(i/col); is superfluous anyway (since both i and col are ints).

Change History (1)

comment:1 Changed 10 years ago by hannes

Resolution: fixed
Status: newclosed

Thanks - fixed as proposed.

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