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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Increment-a-numerical-string/XPL0/increment-a-numerical-string.xpl0 Normal file
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string 0; \use zero-terminated string convention
code Text=12;
func StrLen(A); \Return number of characters in an ASCIIZ string
char A;
int I;
for I:= 0 to -1>>1-1 do
if A(I) = 0 then return I;
proc IncStr(S); \Increment a numeric string
char S;
int I;
[for I:= StrLen(S)-1 downto 0 do
[S(I):= S(I)+1;
if S(I) > ^9 then S(I):= S(I)-10 else return;
];
];
char Str;
[Str:= "0123999999999"; \MSD first (big endian)
IncStr(Str); IncStr(Str);
Text(0, Str);
]