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36 lines
982 B
36 lines
982 B
name: duk_get_string
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proto: |
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const char *duk_get_string(duk_context *ctx, duk_idx_t index);
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stack: |
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[ ... val! ... ]
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summary: |
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<p>Get character data pointer for a string at <code>index</code> without
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modifying or coercing the value. Returns a non-<code>NULL</code> pointer to
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the read-only, NUL-terminated string data. Returns <code>NULL</code> if the
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value is not a string or the index is invalid.</p>
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<p>To get the string byte length explicitly (which is useful if the string
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contains embedded NUL characters), use
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<code><a href="#duk_get_lstring">duk_get_lstring()</a></code>.</p>
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<div class="note">
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A non-<code>NULL</code> return value is guaranteed even for zero length strings;
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this differs from how buffer data pointers are handled (for technical reasons).
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</div>
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example: |
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const char *buf;
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buf = duk_get_string(ctx, -3);
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if (buf) {
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printf("value is a string: %s\n", buf);
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}
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tags:
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- stack
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- string
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introduced: 1.0.0
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