PicC 9.50 dsPIC Manual.pdf

DSPICC Compiler OptionsDSPICC Command-line Driver2.4.38 --PROTO: Generate PrototypesThe --PROTO option is used to generate .pro files containing both ANSI and K&R style functiondeclarations for all functions within the specified source files. Each .pro file produced will havethe same base name as the corresponding source file. Prototype files contain both ANSI C-styleprototypes and old-style C function declarations within conditional compilation blocks.The extern declarations from each .pro file should be edited into a global header file which isincluded in all the source files comprising a project. The .pro files may also contain static declarationsfor functions which are local to a source file. These static declarations should be edited intothe start of the source file. To demonstrate the operation of the --PROTO option, enter the followingsource code as file test.c:#include add(arg1, arg2)int * arg1;int * arg2;{return *arg1 + *arg2;}void printlist(int * list, int count){while (count--)printf("%d ", *list++);putchar(’\n’);}If compiled with the command:DSPICC --CHIP=30F6014 --PROTO test.cDSPICC will produce test.pro containing the following declarations which may then be edited asnecessary:18/* Prototypes from test.c *//* extern functions - include these in a header file */#if PROTOTYPESextern int add(int *, int *);extern void printlist(int *, int);#else /* PROTOTYPES */extern int add();