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samples: hello_world: use printf

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Instead of printk. This change aligns the sample a bit more to the
canonical "hello world" sample in C. Also, samples should in general be
as portable as possible.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This commit is contained in:
Gerard Marull-Paretas 2023-08-11 15:49:38 +02:00 • committed by Carles Cufí
commit f623fcf398
1 changed files with 2 additions and 2 deletions
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4
samples/hello_world/src/main.c
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@ -4,10 +4,10 @@
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <stdio.h>
int main(void)
{
printk("Hello World! %s\n", CONFIG_BOARD);
printf("Hello World! %s\n", CONFIG_BOARD);
return 0;
}