You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
name: duk_get_current_magic
|
|
|
|
|
|
|
|
|
|
proto: |
|
|
|
|
|
duk_int_t duk_get_current_magic(duk_context *ctx);
|
|
|
|
|
|
|
|
|
|
summary: |
|
|
|
|
|
<p>Get the 16-bit signed "magic" value associated with the running
|
|
|
|
|
Duktape/C function. If there is no current activation, zero is returned.</p>
|
|
|
|
|
|
|
|
|
|
<p>The magic function allows the same Duktape/C function to be used with slightly
|
|
|
|
|
different behavior; behavior flags or other parameters can be passed in the
|
|
|
|
|
magic field. This is less expensive than having behavior related flags or
|
|
|
|
|
properties in the function object as normal properties.</p>
|
|
|
|
|
|
|
|
|
|
<p>If you need an unsigned 16-bit value, simply bitwise AND the result:</p>
|
|
|
|
|
<pre class="c-code">
|
|
|
|
|
unsigned int my_flags = ((unsigned int) duk_get_current_magic(ctx)) & 0xffffU;
|
|
|
|
|
</pre>
|
|
|
|
|
|
|
|
|
|
example: |
|
|
|
|
|
duk_int_t my_flags = duk_get_current_magic(ctx);
|
|
|
|
|
if (my_flags & 0x01) {
|
|
|
|
|
printf("flag set\n");
|
|
|
|
|
} else {
|
|
|
|
|
printf("flag not set\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tags:
|
|
|
|
|
- function
|
|
|
|
|
- magic
|
|
|
|
|
|
|
|
|
|
seealso:
|
|
|
|
|
- duk_get_magic
|
|
|
|
|
- duk_set_magic
|
|
|
|
|
|
|
|
|
|
introduced: 1.0.0
|
