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const std = @import("std");
extern fn print(*const u8) void;
comptime {
std.debug.assert(@alignOf(u16) >= 2);
std.debug.assert(@alignOf(u32) >= 4);
std.debug.assert(@alignOf(u64) >= 8);
std.debug.assert(@alignOf(i16) >= 2);
std.debug.assert(@alignOf(i32) >= 4);
std.debug.assert(@alignOf(i64) >= 8);
}
export fn alloc(size: u32) [*]const u8 {
const slice = std.heap.wasm_allocator.alloc(u8, size) catch @panic("wasm failed to allocate memory");
return slice.ptr;
}
export fn wyhash(input_ptr: [*]const u8, input_size: u32, seed: u64) u64 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Wyhash.hash(seed, input);
}
export fn adler32(input_ptr: [*]const u8, input_size: u32) u32 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Adler32.hash(input);
}
export fn crc32(input_ptr: [*]const u8, input_size: u32) u32 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Crc32.hash(input);
}
export fn cityhash32(input_ptr: [*]const u8, input_size: u32) u32 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.CityHash32.hash(input);
}
export fn cityhash64(input_ptr: [*]const u8, input_size: u32, seed: u64) u64 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.CityHash64.hashWithSeed(input, seed);
}
export fn murmur32v3(input_ptr: [*]const u8, input_size: u32, seed: u32) u32 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Murmur3_32.hashWithSeed(input, seed);
}
export fn murmur32v2(input_ptr: [*]const u8, input_size: u32, seed: u32) u32 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Murmur2_32.hashWithSeed(input, seed);
}
export fn murmur64v2(input_ptr: [*]const u8, input_size: u32, seed: u64) u64 {
const input: []const u8 = input_ptr[0..input_size];
defer std.heap.wasm_allocator.free(input);
return std.hash.Murmur2_64.hashWithSeed(input, seed);
}
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