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how to round off the return value

meredith grey

hello anyone here wants to help me...i want the return value to be rounded off for example:
TotalComponent=235
PartialComponent=90
per=38.3%

but with this function i always get 0 % anyone here want to sugest what should be done

unsigned int CalculatePercentage(int TotalComponent,int PartialComponent){
int per;

per= (PartialComponent/TotalComponent)*100;
return (float)per;
}

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  • 0 in reply to Mik Kleshov 

     per = CalculatePercentage( 235, 90 );
 printf( "Percent %d", per );

    the return value is 38% the .3 is disregarded

    As Mike says, the reson for this should be obvious - it's textbook stuff.

    main() {
 float per;
 per = CalculatePercentage( 235, 90 );
 printf( "Percent %f", per );
}

    the return value is 38% the .3 is disregarded

    How have you checked the return value?

    Obviously, if the return value has been truncated before calling printf, then just changing the format specifier in the printf cannot magically re-generate the discarded information!

    Or maybe you just changed your source code, and forgot to rebuild it...?

    PS Note how the addition of a little whitespace makes your code so much easier to read!

Reply
  • 0 in reply to Mik Kleshov 

     per = CalculatePercentage( 235, 90 );
 printf( "Percent %d", per );

    the return value is 38% the .3 is disregarded

    As Mike says, the reson for this should be obvious - it's textbook stuff.

    main() {
 float per;
 per = CalculatePercentage( 235, 90 );
 printf( "Percent %f", per );
}

    the return value is 38% the .3 is disregarded

    How have you checked the return value?

    Obviously, if the return value has been truncated before calling printf, then just changing the format specifier in the printf cannot magically re-generate the discarded information!

    Or maybe you just changed your source code, and forgot to rebuild it...?

    PS Note how the addition of a little whitespace makes your code so much easier to read!

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