Modula-2 || Compiler & Tools || Library || Search Engine
(* diagnostic *) PROCEDURE done () : BOOLEAN; PROCEDURE success() : FmtExitCode;
(* error handling *) PROCEDURE setmode (mode : BITSET); PROCEDURE getmode (VAR mode : BITSET);
(* output *) PROCEDURE printf0 (VAR string : ARRAY OF CHAR; fmt : ARRAY OF CHAR); PROCEDURE printf1 (VAR string : ARRAY OF CHAR; fmt : ARRAY OF CHAR; i1 : ARRAY OF BYTE); PROCEDURE printf2 (VAR string : ARRAY OF CHAR; fmt : ARRAY OF CHAR; i1,i2 : ARRAY OF BYTE); (* ... *) PROCEDURE printf8 (VAR string : ARRAY OF CHAR; fmt : ARRAY OF CHAR; i1, i2, i3, i4, i5, i6, i7 , i8 : ARRAY OF BYTE);
done returns TRUE if the last call of printf0 .. printf8 was successful, more detailed information can be obtained by success (FmtExitCode is imported from Printf).
setmode defines a new error handling mode mode which is by default set to Printf.Default. getmode yields the current mode.
Besides for reasons of illegal format strings, printf1 .. printf8 will fail if string is too small (error code StringTooSmall).
Error messages issued by S will contain information about their reason and the affected procedure call:
[fatal] S.printf0(...,"Hallo."); Illegal parameter values: string too small. [a.out] Exit code 203. Stop.
Modula-2 || Compiler & Tools || Library || Search Engine