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Start getting items from a variable argument list
#include <stdarg.h>
void va_start( va_list param,
previous );
- param
- A va_list object that the “varargs”
macros can use to locate the arguments.
- previous
- The argument that immediately precedes the
"..." notation in the original function definition.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Use the va_start() macro to start the acquisition of arguments
from a list of variable arguments.
You must use the va_start() macro with the associated macros
va_arg(),
va_copy(),
and
va_end().
For each call to va_start(), you must have a matching call to
va_end().
For more information, see va_arg().
See va_arg().
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
va_start() is a macro.
va_arg(),
va_copy(),
va_end()
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