ABS(3) BSD Library Functions Manual ABS(3)NAMEabs, labs, llabs, imaxabs -- functions for integer absolute valueLIBRARYStandard C Library (libc, -lc)SYNOPSIS#include <stdlib.h> int abs(int x); long int labs(long int x); long long int llabs(long long int x); #include <inttypes.h> intmax_t imaxabs(intmax_t x);DESCRIPTIONThese functions return the absolute value of the integer x. The listed functions differ only with respect to the type of the return value and x.SEE ALSOcabs(3), fabs(3), floor(3), math(3)STANDARDSThe described functions conform to ISO/IEC 9899:1999 (``ISO C99'').BUGSThe absolute value of the most negative integer remains negative.BSDApril 13, 2011 BSD