remquo
From cppreference.com
                    
                                        
                    
                    
                                                            
                    |   Defined in header  
<math.h>
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|   float       remquof( float x, float y, int *quo ); 
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(since C99) | |
|   double      remquo( double x, double y, int *quo ); 
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(since C99) | |
|   long double remquol( long double x, long double y, int *quo ); 
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(since C99) | |
Computes the remainder of the floating point division operation x/y as the remainder() function does. Additionally, the sign and at least the three of the last bits of x/y will be stored in quo.
[edit] Parameters
| x, y | - | floating point values | 
| quo | - | pointer to an integer value to store some bits of x/y in | 
[edit] Return value
Remainder of dividing arguments.
[edit] See also
|    (C99) 
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   signed remainder of the division operation   (function)  | 
|    remainder of the floating point division operation  (function)  | 
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|    (C99) 
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   the quotient and remainder of integer division  (function)  | 
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C++ documentation for remquo
 
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