TRUNC(3) Linux Programmer's Manual TRUNC(3)

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)

2001-05-31

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