Node:Remainder Functions, Next:FP Bit Twiddling, Previous:Rounding Functions, Up:Arithmetic Functions
The functions in this section compute the remainder on division of two floating-point numbers. Each is a little different; pick the one that suits your problem.
| double fmod (double numerator, double denominator) | Function |
| float fmodf (float numerator, float denominator) | Function |
| long double fmodl (long double numerator, long double denominator) | Function |
These functions compute the remainder from the division of
numerator by denominator. Specifically, the return value is
numerator - n * denominator, where n
is the quotient of numerator divided by denominator, rounded
towards zero to an integer. Thus, fmod (6.5, 2.3) returns
1.9, which is 6.5 minus 4.6.
The result has the same sign as the numerator and has magnitude less than the magnitude of the denominator. If denominator is zero, |
| double drem (double numerator, double denominator) | Function |
| float dremf (float numerator, float denominator) | Function |
| long double dreml (long double numerator, long double denominator) | Function |
These functions are like fmod except that they rounds the
internal quotient n to the nearest integer instead of towards zero
to an integer. For example, drem (6.5, 2.3) returns -0.4,
which is 6.5 minus 6.9.
The absolute value of the result is less than or equal to half the
absolute value of the denominator. The difference between
If denominator is zero, |
| double remainder (double numerator, double denominator) | Function |
| float remainderf (float numerator, float denominator) | Function |
| long double remainderl (long double numerator, long double denominator) | Function |
This function is another name for drem.
|