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30 lines
613 B
30 lines
613 B
name: duk_require_buffer
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proto: |
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void *duk_require_buffer(duk_context *ctx, duk_idx_t idx, duk_size_t *out_size);
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stack: |
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[ ... val! ... ]
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summary: |
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<p>Like <code><a href="#duk_get_buffer">duk_get_buffer()</a></code>,
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but throws an error if the value at <code>idx</code> is not a (plain)
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buffer or if the index is invalid.</p>
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example: |
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void *ptr;
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duk_size_t sz;
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ptr = duk_require_buffer(ctx, -3, &sz);
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printf("buf=%p, size=%lu\n", ptr, (unsigned long) sz);
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tags:
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- stack
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- buffer
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seealso:
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- duk_get_buffer
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- duk_require_buffer_data
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- duk_get_buffer_data
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introduced: 1.0.0
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