tmp/tmpvw442dx0/{from.md → to.md}
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### Header `<cstdarg>` synopsis <a id="cstdarg.syn">[[cstdarg.syn]]</a>
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``` cpp
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namespace std {
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using va_list = see below;
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}
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#define va_arg(V, P) see below
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#define va_copy(VDST, VSRC) see below
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#define va_end(V) see below
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#define va_start(V, P) see below
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```
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The contents of the header `<cstdarg>` are the same as the C standard
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library header `<stdarg.h>`, with the following changes: The
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restrictions that ISO C places on the second parameter to the `va_start`
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macro in header `<stdarg.h>` are different in this International
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Standard. The parameter `parmN` is the rightmost parameter in the
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variable parameter list of the function definition (the one just before
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the `...`).[^34] If the parameter `parmN` is a pack expansion (
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[[temp.variadic]]) or an entity resulting from a lambda capture (
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[[expr.prim.lambda]]), the program is ill-formed, no diagnostic
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required. If the parameter `parmN` is of a reference type, or of a type
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that is not compatible with the type that results when passing an
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argument for which there is no parameter, the behavior is undefined.
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ISO C 7.16.1.1.
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