Standard ANSI C and math library functions are contained in the file
libc-omf.a, where omf will be elf
or coff depending upon the selected object module format.
Assembly Code Applications
A free version of the math functions library and header file is available from the Microchip web site. No source code is available with this free version.
C Code Applications
The MPLAB XC16 C Compiler install directory (see “Libraries Overview, Compiler Installation Locations”) contains the following subdirectories with library-related files:
lib – standard C
library filessrc\libm – source
code for math library functions, batch file to rebuild the librarysupport\h – header
files for libraries