---
source: tooling/nargo_cli/tests/execute.rs
expression: expanded_code
---
fn main(bn254_modulus_be_bytes: [u8; 32], bn254_modulus_be_bits: [bool; 254]) {
let modulus_size: u64 = std::field::modulus_num_bits();
assert(modulus_size == 254_u64);
assert_reverse(
std::field::modulus_be_bytes(),
std::field::modulus_le_bytes(),
);
let modulus_be_byte_array: [u8] = std::field::modulus_be_bytes();
for i in 0_u32..32_u32 {
assert(modulus_be_byte_array[i] == bn254_modulus_be_bytes[i]);
}
let modulus_le_byte_array: [u8] = std::field::modulus_le_bytes();
for i in 0_u32..32_u32 {
assert(modulus_le_byte_array[i] == bn254_modulus_be_bytes[31_u32 - i]);
}
let modulus_be_bits: [bool] = std::field::modulus_be_bits();
for i in 0_u32..254_u32 {
assert(modulus_be_bits[i] == bn254_modulus_be_bits[i]);
}
let modulus_le_bits: [bool] = std::field::modulus_le_bits();
for i in 0_u32..254_u32 {
assert(modulus_le_bits[i] == bn254_modulus_be_bits[253_u32 - i]);
}
}
fn assert_reverse(forwards: [u8], backwards: [u8]) {
for i in 0_u32..32_u32 {
assert(forwards[i] == backwards[31_u32 - i]);
}
}