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atoi How about itoa

 
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young



Joined: 24 Jun 2004
Posts: 285

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atoi How about itoa
PostPosted: Fri Jun 25, 2004 8:01 am     Reply with quote

Hi:
I knew that CCS have a built in function as atoi, is that also possible to use itoa function?


Thank you
young



Joined: 24 Jun 2004
Posts: 285

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PostPosted: Fri Jun 25, 2004 8:23 am     Reply with quote

I compiled the file just using char a=itoc(8), I already include <stdlib.h,> error as undefined identifier itoc, so I believe itoc is not support in CCS. any other opinions.
valemike
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PostPosted: Fri Jun 25, 2004 8:24 am     Reply with quote

There doesn't seem to be an itoa() function in the documentation, so you'll have to make your own.

I think the K&R book has an example you can copy.
Darren Rook



Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI

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PostPosted: Fri Jun 25, 2004 8:30 am     Reply with quote

Look at sprintf()
young



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PostPosted: Fri Jun 25, 2004 9:25 am     Reply with quote

Thanks
when I complied this following program, an error, an expression must evalust to constant occcured, how to correct it.

char PinNum[7];
int i;
for(i=0;i<7;i++)
{
sprintf(PinNum,"PIN_B%u",i);
output_high(PinNum);
delay_ms(20);
output_low(PinNum);
Darren Rook



Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI

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PostPosted: Fri Jun 25, 2004 10:04 am     Reply with quote

young wrote:
Thanks
when I complied this following program, an error, an expression must evalust to constant occcured, how to correct it.

char PinNum[7];
int i;
for(i=0;i<7;i++)
{
sprintf(PinNum,"PIN_B%u",i);
output_high(PinNum);
delay_ms(20);
output_low(PinNum);


Unfortunately output_high() and output_low() requires a constant integer.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Jun 25, 2004 1:14 pm     Reply with quote

Quote:
when I complied this following program, an error, an expression
must evaluate to constant occcured, how to correct it.
output_high(PinNum);

Look at the following thread:
http://www.ccsinfo.com/forum/viewtopic.php?t=18233
Mark has posted two functions for output_high and
output_low that let you pass a CCS-style pin number
to the functions as a variable, instead of a constant.
Look for these function names in his post:
my_output_high()
my_output_low()
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