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#include <math.h> if ( ceil(a*b) == (a*b) ) ... The ceil function (or floor, trunc, round etc.) all convert a number to an integer, so if the result is equal to the original value, the number already was an integer. Note that you can use the man command for most C++ functions - type "man ceil" for instance. Ramon Casha - --------------------------------------------------------------------- You received this message because you are subscribed to the linux mailing list. If you do not wish to continue receiving this mailing list, please send a mail message to [EMAIL PROTECTED] containing only the text "unsubscribe linux" ------------------------------
