The largest representable floating point values are exact integers in all standard floating point formats so this function never overflows on its own.
Floor int c.
The floor function returns the largest possible integer value which is equal to the value or smaller than that.
In the c language the required header for the floor function is.
The floor function returns the largest integer that is smaller than or equal to x.
Long double floor long double x.
Otherwise if arg has integer type or the type double floor is called.
C floor the floor function in c returns the largest possible integer value which is less than or equal to the given argument.
Returns the largest integer that is smaller than or equal to x i e.
Floor has an implementation that uses streaming simd extensions 2 sse2.
Double ceil t x.
In a c program unless you re using the tgmath h macro to call this function floor always takes and returns.
This function is also declared in cmath header file in c language.
For information and restrictions about using the sse2 implementation see set sse2 enable.
Double ceil double x.
Here x is the floating point value.
C allows overloading so you can call overloads of floor that take and return float and long double values.
Include math h applies to.
Rounds downs the nearest integer.
However the result may overflow any integer type including std intmax t when stored in an integer variable.
Additional overloads for integral types.
Float floor float x.
1 3 computes the largest integer value not greater than arg.
It takes single value whoes floor value is to be calculated.
Round down value rounds x downward returning the largest integral value that is not greater than x.
Long double ceil long double x.
The value to round down to the nearest integer.
Double floor double x.