fn add(lhs: usize, rhs: usize) -> usize {
return lhs + rhs;
}
fn sub(lhs: usize, rhs: usize) -> usize {
return lhs - rhs;
}
fn main() -> u8 {
let ptrs: fn(usize, usize)->usize[2] = [sub, add];
let value: usize;
// there're whoopsie daisies with other types than u8(segfault)
for let i: u8 = 0; i < 2; i = i + 1 {
value = ptrs[(i as usize)](i as usize, i as usize);
printf("%d", value);
}
return 0;
}
@Learath2 I didn't decide anything regarding enums but I added function pointers 
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typedef struct {
const char *name;
Data *(*fn)(Data *);
} Macro;
typedef struct {
size_t size;
Macro macros[];
} Macros;
how to make such structs in rust?
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Macro macros[]; 
#[repr(C)]
struct Macros {
size: usize,
_macros: [Macro; 0],
}
trait GimmeMacros {
fn macros(&self) -> &[Macro];
}
impl GimmeMacros for *const Macros {
fn macros(&self) -> &[Macro] {
unsafe {
let skip_size = self.byte_add(size_of_val(&self.read().size));
std::slice::from_raw_parts(skip_size as *const Macro, self.read().size)
}
}
}
#[repr(C)]
struct Macros {
size: usize,
_macros: [Macro; 0],
}
trait GimmeMacros {
fn macros(&self) -> &[Macro];
}
impl GimmeMacros for *const Macros {
fn macros(&self) -> &[Macro] {
unsafe {
let skip_size = self.byte_add(size_of_val(&self.read().size));
std::slice::from_raw_parts(skip_size as *const Macro, self.read().size)
}
}
} 
typedef struct {
const char *name;
Data *(*fn)(Data *);
} Macro;
typedef struct {
size_t size;
Macro macros[];
} Macros;
how to make such structs in rust? Macros in shared object, and I had to get it somehow
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android:supportsRtl="true" biggest lie in ddnet code 
android:supportsRtl="true" biggest lie in ddnet code 
mold: fatal: ddnet_engine_shared-cd5af9afb6c5385a.1x1mslembt45wzvj8781d2swp.rcgu.o: incompatible file type: arm64 is expected but got x86_64
This is the err in newer NDK versions, so weird 
ANDROID_NDK_VERSION="$(cd "$ANDROID_HOME/ndk" && find . -maxdepth 1 | sort -n | tail -1)"
ANDROID_NDK_VERSION="${ANDROID_NDK_VERSION:2}"
# ANDROID_NDK_HOME must be exported for cargo-ndk
export ANDROID_NDK_HOME="$ANDROID_HOME/ndk/$ANDROID_NDK_VERSION"
Seems like the build script currently uses the folder based on the sorting the filenames, so you can't easily use an older NDKmold: error: undefined symbol: __sendto_chk
man ndk 26 used to work 
LIMIT a ? but didn't add an argument to bind to it 
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fn printf(format: *i8, _: *i8) -> void;
fn main() -> u8 {
let lol: *i8 = gimme_points!();
printf("Player's points: %s", lol);
return 0;
}
Shared object file
Data Points(Data data, size_t _) {
char buf[256];
FILE *file = fopen("~/personal/c_playground/file", "r");
fread(buf, sizeof(buf), 1, file);
int n = strlen((const char *)buf);
char *str = (char *)malloc(n);
memcpy(str, buf, n);
// Overwrite '\n'
str[n - 1] = '\0';
return str;
}
Macros macros = {
.size = 1,
.macros = {
{"gimme_points", Points},
},
}; 1 1
1memcpy(str, buf, n);
// Overwrite '\n'
str[n - 1] = '\0';
that's one way to handle null termination 
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