nicht angemeldet
Hi Tom!
Und was sagt mir das als _Nicht_ c-Programmierer bezüglich Funktionsparameter, Rückgabewert und Funktionsweise ???
<CITE SOURCE="Microsoft Visual C++ 5.0 Runtime Library Reference">
double floor(double x);
Calculates the floor of a value.
Function Required Header Compatibility
floor <math.h> ANSI, Win 95, Win NT
Return Value
The floor function returns a floating-point value representing the largest integer that is less than or equal to x. There is no error return.
Parameter
x Floating-point value
Example
/* FLOOR.C: This example displays the largest integers
* less than or equal to the floating-point values 2.8
* and -2.8. It then shows the smallest integers greater
* than or equal to 2.8 and -2.8.
*/
#include <math.h>
#include <stdio.h>
void main( void )
{
double y;
y = floor( 2.8 );
printf( "The floor of 2.8 is %f\n", y );
y = floor( -2.8 );
printf( "The floor of -2.8 is %f\n", y );
y = ceil( 2.8 );
printf( "The ceil of 2.8 is %f\n", y );
y = ceil( -2.8 );
printf( "The ceil of -2.8 is %f\n", y );
}
Output
The floor of 2.8 is 2.000000
The floor of -2.8 is -3.000000
The ceil of 2.8 is 3.000000
The ceil of -2.8 is -2.000000
See Also ceil, fmod
</CITE>
Ist zwar eine Microsoft-Beschreibung, da als "Compatibility" jedoch ANSI angegeben ist, sollte die Bibliothek bei jedem Ansi-kompatiblen C genauso funktionieren.
Calocybe