July 15, 2004 ROUND 3

### NAME

round, roundf - round to nearest integral value

### LIBRARY

Math Library (libm, -lm)

### SYNOPSIS

```double` round(```double x`)
```float` roundf(```float x`)

### DESCRIPTION

The round(``) and roundf(``) functions return the nearest integral value to ```x`; if ```x` lies halfway between two integral values, then these functions return the integral value with the larger absolute value (i.e., they round away from zero).

### SEE ALSO

ceil(3), floor(3), ieee(3), math(3), rint(3), trunc(3)

### STANDARDS

The round(``) and roundf(``) functions conform to ISO/IEC 9899:1999 (``ISO C99'') .

### HISTORY

The round(``) and roundf(``) functions appeared in NetBSD2.0.