Code:
--------------------Configuration: CS120 - Win32 Debug--------------------
Compiling...
StrCSpn.c
Linking...
LINK : LNK4073: cannot create map for .ILK file; linking nonincrementally
StrSpn.obj : error LNK2005: _StrSpn already defined in StrCSpn.obj
StrSpn.obj : error LNK2005: _i already defined in StrCSpn.obj
Debug/CS120.exe : fatal error LNK1169: one or more multiply defined symbols found
Error executing link.exe.

CS120.exe - 3 error(s), 0 warning(s)