Nios II Classic Software Developer’s Handbook

ID 683282
Date 5/14/2015
Public
Document Table of Contents

14.2.3. alt_putchar()

Prototype

alt_putchar(int c)

Commonly Called By

C/C++ programs

Device drivers

Thread-safe

See description.

Available from ISR

No.

Include

<sys/alt_driver.h>
<sys/alt_stdio.h>

Description

The alt_putchar() function uses the ALT_DRIVER_WRITE() macro to call directly to the driver, if available; otherwise, it uses the newlib provided putchar() routine.

Return

The return value is zero on success and nonzero otherwise.