.TH LIBJ2 7 LIBJ2 .SH NAME libj2 \- Double-max precision integers .SH SYNOPSIS .nf #include .fi .PP Link with .IR -lj2 . .SH DESCRIPTION .B libj2 provides integer data types with double the width of .BR uintmax_t , along with functions for preforming standard integer operations, with optional overflow-detection. .SH SEE ALSO .BR libzahl (7)