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structs_19.py
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from lpython import (i8, dataclass, i32, f32, c32, f64, i16, i64, c64,
ccall, CPtr, c_p_pointer, Pointer, ccallable)
from numpy import empty, int32, int8, float32, float64, int16, int64, complex64, complex128
@ccallable
@dataclass
class buffer_struct:
buffer8: i8
buffer1: i32
buffer2: f32
buffer3: c32
buffer4: f64
buffer5: i16
buffer6: i64
buffer7: c64
@ccallable
@dataclass
class buffer_struct_array:
buffer8: i8[25]
buffer1: i32[16]
buffer2: f32[16]
buffer4: f64[16]
buffer5: i16[32]
buffer6: i64[8]
buffer3: c32[8]
buffer7: c64[4]
@ccall
def get_buffer() -> CPtr:
pass
@ccall
def fill_buffer(buffer_cptr: CPtr):
pass
@ccall
def get_buffer_array() -> CPtr:
pass
@ccall
def fill_buffer_array(buffer_cptr: CPtr):
pass
def f():
b: CPtr = get_buffer()
pb: Pointer[buffer_struct] = c_p_pointer(b, buffer_struct)
pb.buffer8 = i8(3)
pb.buffer1 = i32(4)
pb.buffer2 = f32(5)
pb.buffer3 = c32(9)
pb.buffer4 = f64(6)
pb.buffer5 = i16(7)
pb.buffer6 = i64(8)
pb.buffer7 = c64(10)
print(pb.buffer8)
print(pb.buffer1)
print(pb.buffer2)
print(pb.buffer3)
print(pb.buffer4)
print(pb.buffer5)
print(pb.buffer6)
print(pb.buffer7)
assert pb.buffer8 == i8(3)
assert pb.buffer1 == i32(4)
assert pb.buffer2 == f32(5)
assert pb.buffer3 == c32(9)
assert pb.buffer4 == f64(6)
assert pb.buffer5 == i16(7)
assert pb.buffer6 == i64(8)
assert pb.buffer7 == c64(10)
fill_buffer(b)
print(pb.buffer8)
print(pb.buffer1)
print(pb.buffer2)
print(pb.buffer3)
print(pb.buffer4)
print(pb.buffer5)
print(pb.buffer6)
print(pb.buffer7)
assert pb.buffer8 == i8(8)
assert pb.buffer1 == i32(9)
assert pb.buffer2 == f32(10)
assert pb.buffer3 == c32(14) + c32(15j)
assert pb.buffer4 == f64(11)
assert pb.buffer5 == i16(12)
assert pb.buffer6 == i64(13)
assert pb.buffer7 == c64(16) + c64(17j)
def f_array():
i: i32
b: CPtr = get_buffer_array()
pb: Pointer[buffer_struct_array] = c_p_pointer(b, buffer_struct_array)
pb.buffer8 = empty(25, dtype=int8)
pb.buffer1 = empty(16, dtype=int32)
pb.buffer2 = empty(16, dtype=float32)
pb.buffer4 = empty(16, dtype=float64)
pb.buffer5 = empty(32, dtype=int16)
pb.buffer6 = empty(8, dtype=int64)
pb.buffer3 = empty(8, dtype=complex64)
pb.buffer7 = empty(4, dtype=complex128)
fill_buffer_array(b)
for i in range(25):
print(pb.buffer8[i])
assert pb.buffer8[i] == i8(i + 8)
for i in range(16):
print(pb.buffer1[i], pb.buffer2[i], pb.buffer4[i])
assert pb.buffer1[i] == i32(i + 1)
assert pb.buffer2[i] == f32(i + 2)
assert pb.buffer4[i] == f64(i + 4)
for i in range(32):
print(pb.buffer5[i])
assert pb.buffer5[i] == i16(i + 5)
for i in range(8):
print(pb.buffer6[i], pb.buffer3[i])
assert pb.buffer6[i] == i64(i + 6)
assert pb.buffer3[i] == c32(i + 3)
for i in range(4):
print(pb.buffer7[i])
assert pb.buffer7[i] == c64(i + 7)
f()
f_array()