GNU/Linux |
CentOS 5.6 |
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trunc(3) |
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trunc, truncf, truncl − round to integer, towards zero
#include <math.h>
double
trunc(double x);
float truncf(float x);
long double truncl(long double x);
Compile with −std=c99; link with −lm.
These functions round x to the nearest integer not larger in absolute value.
The rounded integer value. If x is integral, infinite or NaN, x itself is returned.
None.
C99.
ceil(3), floor(3), lrint(3), nearbyint(3), rint(3), round(3)
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trunc(3) | ![]() |