Update: stdme/os module

This commit is contained in:
Maieul BOYER 2024-04-29 15:12:51 +02:00
parent dfb10f3390
commit 16f49181b5
No known key found for this signature in database
37 changed files with 1201 additions and 345 deletions

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@ -20,20 +20,20 @@
#define OP_MUL 0b0100
#define OP_CHK 0b1000
t_error checked_add_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
t_error checked_sub_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
t_error checked_mul_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
t_error checked_add_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
t_error checked_sub_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
t_error checked_mul_u8(t_u8 lhs, t_u8 rhs, t_u8 *out);
static inline bool can_not_overflow(t_u32 radix, bool is_signed_type,
t_usize digits_len)
static inline bool can_not_overflow(t_u32 radix, bool is_signed_type,
t_usize digits_len)
{
return (radix <= 16 && digits_len <= sizeof(t_u8) * 2
- (t_usize)is_signed_type);
return (radix <= 16 &&
digits_len <= sizeof(t_u8) * 2 - (t_usize)is_signed_type);
}
static inline t_error to_digit(t_u8 ascii, t_u32 radix, t_u32 *out)
static inline t_error to_digit(t_u8 ascii, t_u32 radix, t_u32 *out)
{
t_u32 digit;
t_u32 digit;
if (radix < 2 || radix > 36)
return (ERROR);
@ -50,10 +50,10 @@ static inline t_error to_digit(t_u8 ascii, t_u32 radix, t_u32 *out)
return (NO_ERROR);
}
static inline t_error do_operation(t_u8 digit, t_u8 op, t_u8 *result)
static inline t_error do_operation(t_u8 digit, t_u8 op, t_u8 *result)
{
t_u8 rhs;
t_u8 res;
t_u8 rhs;
t_u8 res;
rhs = *result;
res = *result;
@ -79,13 +79,14 @@ static inline t_error do_operation(t_u8 digit, t_u8 op, t_u8 *result)
return (NO_ERROR);
}
static inline t_error loop_inner(t_const_str s, t_u32 radix, t_u8 op,
t_u8 *out)
static inline t_error loop_inner(t_const_str s, t_u32 radix, t_u8 op,
t_u8 *out)
{
t_u32 digit;
t_u8 result;
t_u32 digit;
t_u8 result;
result = 0u;
while (*s)
{
if (do_operation(radix, (op & OP_CHK) | OP_MUL, &result))
@ -101,9 +102,9 @@ static inline t_error loop_inner(t_const_str s, t_u32 radix, t_u8 op,
return (NO_ERROR);
}
t_error str_to_u8(t_const_str s, t_u32 radix, t_u8 *out)
t_error str_to_u8(t_const_str s, t_u32 radix, t_u8 *out)
{
t_usize digits_len;
t_usize digits_len;
bool is_positive;
t_u8 op;