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README.md  view on Meta::CPAN

# Bind 'cos' from the math library
affix libm(), 'cos', [Double] => Double;
```

### `get_last_error_message()`

If `load_library`, `find_symbol`, or a signature parsing step fails, this function returns a string describing the
most recent internal or operating system error (via `dlerror` or `FormatMessage`).

```perl
my $lib = load_library('does_not_exist');
if (!$lib) {
    die "Failed to load library: " . get_last_error_message();
}
```

# INTROSPECTION

When working with C APIs, you often need to know exactly how much memory a structure consumes or where a specific field
is located within a block of memory. Affix provides compiler-grade type introspection.

lib/Affix.pod  view on Meta::CPAN

    affix libc(), 'puts', [String] => Int;

    # Bind 'cos' from the math library
    affix libm(), 'cos', [Double] => Double;

=head3 C<get_last_error_message()>

If C<load_library>, C<find_symbol>, or a signature parsing step fails, this function returns a string describing the
most recent internal or operating system error (via C<dlerror> or C<FormatMessage>).

    my $lib = load_library('does_not_exist');
    if (!$lib) {
        die "Failed to load library: " . get_last_error_message();
    }

=head1 INTROSPECTION

When working with C APIs, you often need to know exactly how much memory a structure consumes or where a specific field
is located within a block of memory. Affix provides compiler-grade type introspection.

=head3 C<sizeof( $type )>