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31 lines
909 B
31 lines
909 B
=proto
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const char *duk_to_lstring(duk_context *ctx, int index, size_t *out_len);
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=stack
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[ ... val! ... ] -> [ ... ToString(val)! ... ]
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=summary
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<p>Replace the value at <code>index</code> with an Ecmascript
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<a href="http://www.ecma-international.org/ecma-262/5.1/#sec-9.8">ToString()</a>
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coerced value. Returns a non-<code>NULL</code> pointer to the read-only,
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NUL-terminated string data, and writes the string byte length to <code>*out_len</code>
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(if <code>out_len</code> is non-<code>NULL</code>). If <code>index</code> is invalid, throws
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an error.</p>
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<p>Custom type coercion:</p>
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<ul>
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<li>Buffer: coerces byte-for-byte into a string</li>
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<li>Pointer: coerces to a string formatted with <code>sprintf()</code> format
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<code>%p</code></li>
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</ul>
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=example
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const char *ptr;
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size_t sz;
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ptr = duk_to_lstring(ctx, -3, &sz);
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printf("coerced string: %s (length %d)\n", ptr, (int) sz);
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=tags
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stack
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string
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