.TH umult64 3
.SH NAME
umult64 \- integer multiplication with overflow checking
.SH SYNTAX
.B #include <libowfat/safemult.h>

int \fBumult64\fP(uint64 a,uint64 b,uint64* c);
.SH DESCRIPTION
umult64 does c=a*b and returns 1.

In case of an integer overflow, umult64 leaves \fIc\fR alone and returns
0.
.SH "SEE ALSO"
imult16(3), imult32(3), imult64(3)