a88e26cc08
* add operator* * add operator-> * add ptr() unwrap method * comments/refactor * macro_rules * external symbols workaround
22 lines
413 B
C
22 lines
413 B
C
// Compile with:
|
|
// clang --target=wasm32 reverse-str.c -o reverse-str.wasm -g \
|
|
// -O0 -nostdlib -fdebug-prefix-map=$PWD=.
|
|
#include <stdlib.h>
|
|
|
|
void reverse(char *s, size_t len)
|
|
{
|
|
if (!len) return;
|
|
size_t i = 0, j = len - 1;
|
|
while (i < j) {
|
|
char t = s[i];
|
|
s[i++] = s[j];
|
|
s[j--] = t;
|
|
}
|
|
}
|
|
|
|
void _start()
|
|
{
|
|
char hello[] = "Hello, world.";
|
|
reverse(hello, 13);
|
|
}
|