countdown_timer.c(119): error C100: unprintable character 0x97 skipped

[snytax error]

I'm sorry if I'm at the wrong thread section, please MOD transfer to the right section

anyway, I'm a newbie to programming

I have a problem with this error

countdown_timer.c(119): error C100: unprintable character 0x97 skipped
countdown_timer.c(174): error C100: unprintable character 0x97 skipped
countdown_timer.c(188): error C100: unprintable character 0x97 skipped
countdown_timer.c(280): error C100: unprintable character 0x96 skipped
countdown_timer.c(280): error C100: unprintable character 0x96 skipped
countdown_timer.c(294): error C100: unprintable character 0x96 skipped
countdown_timer.c(294): error C100: unprintable character 0x96 skipped

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Code C - [expand]
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118  case 3:
119  SetSec—;
120  if(SetSec>9999)
 
173  {
174 KeyCount—;
175 if(KeyCount<1)KeyCount=1;
 
187   {
188 dly—;
189 for(z=0;z<8000;z++);

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This program was posted on PDF Industrial Timer, and I compile it with Keil with the error above.

 

[FvM]

Do you see the difference between your code and legal C syntax?

SetSec—;

SetSec--;

 

[snytax error]

Thanks! :wink:

 

[Aaron2]

I have this same problem with unprintable character 0x96 on build, in the below code.
So I updated the code from h-; to h--;

Clock_Cal1.c(183): error C100: unprintable character 0x96 skipped
Clock_Cal1.c(191): error C100: unprintable character 0x96 skipped
Clock_Cal1.c(217): error C100: unprintable character 0x96 skipped
In this code.

181  if(m>0)             // if minute is greater then zero
182 {
183 m–;                              // minute is decrease till zero
184 s=-1 ;                          // after releasing minute decrease button seconds initialize from   
185 }
186 }
187 else if(r==0)          // switch for decreasing hours
188 {
189 if(h>0)                // if hour is greater than zero
190 {
191 h–;                      // hour is decrease till zero
      s=-1;                    // after releasing hour decrease button seconds initialize from zero
      }
      }
      else if(l==0)             // switch for increasing minutes
      {
      m++;
      s=-1;
      if(m>60)                  // if increased minutes are above than 60 than it again start from zero
      {
      m=0;
       s=-1;
       }
       }
       else if(t==0)           // switch for increasing days
       {
       i++;

But with the double dash added (h-- new errors appear as follows.

Clock_Cal1.c(183): error C100: unprintable character 0x96 skipped
Clock_Cal1.c(183): error C141: syntax error near ';'
Clock_Cal1.c(191): error C100: unprintable character 0x96 skipped
Clock_Cal1.c(191): error C141: syntax error near ';'

Any suggestions appreciated.

 

[FvM]

You should definitely check (or probably change) your programming editor.

Windows character 0x96 is displayed as minus sign, but not recognized by the compiler. I wonder how you managed to enter it in regular code?

- - - Updated - - -

This program was posted on PDF Industrial Timer

That might be an explanation how you caught the strange characters. The can be replaced by regular characters with search and replace.

 

[Aaron2]

The code I'm working on was in a project located here: https://electronicswork.wordpress.com/2012/10/11/digitalclock/

I'm using Keil uVision4, I thought it should be reliable.

 

[FvM]

It's not a Keil problem, it's a problem of importing formated text without filtering special characters.

In the printout, the unary operator -- is replaced by a dash character, 0x96 or 0x97. You have to reformat it to legal C syntax, that's all. In case of doubt, delete and retype the faulty lines.