On Thursday, 11 November 2021 at 07:10:39 UTC, Mathias LANG wrote:
[...]
Your type definition is wrong:
```D
struct toml_datum_t {
int ok;
union u {
toml_timestamp_t* ts; /* ts must be freed after use */
char* s; /* string value. s must be freed after use */
int b; /* bool value */
int64_t i; /* int value */
double d; /* double value */
}
}
```
If you check the size of this struct, it's going to be 4,
because `u` is a type definition. What you want is either:
```D
struct toml_datum_t {
int ok;
union {
toml_timestamp_t* ts; /* ts must be freed after use */
char* s; /* string value. s must be freed after use */
int b; /* bool value */
int64_t i; /* int value */
double d; /* double value */
}
}
```
Which you access via `host.s` or:
```D
struct toml_datum_t {
int ok;
/// This is the type definition
union U {
toml_timestamp_t* ts; /* ts must be freed after use */
char* s; /* string value. s must be freed after use */
int b; /* bool value */
int64_t i; /* int value */
double d; /* double value */
}
/// This is the field
U u;
}
```
Note that instead of doing this work yourself, I would highly
recommend the excellent
[dstep](https://github.com/jacob-carlborg/dstep).
Fixed formatting (so much for "Fix it for me").
