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49 lines
924 B
C
49 lines
924 B
C
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/*
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* Implementation function behind dupwcscat() in misc.h.
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*
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* This function is called with an arbitrary number of 'const wchar_t
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* *' parameters, of which the last one is a null pointer. The wrapper
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* macro puts on the null pointer itself, so normally callers don't
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* have to.
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*/
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#include <stdarg.h>
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#include <wchar.h>
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#include "defs.h"
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#include "misc.h"
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wchar_t *dupwcscat_fn(const wchar_t *s1, ...)
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{
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int len;
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wchar_t *p, *q, *sn;
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va_list ap;
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len = wcslen(s1);
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va_start(ap, s1);
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while (1) {
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sn = va_arg(ap, wchar_t *);
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if (!sn)
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break;
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len += wcslen(sn);
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}
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va_end(ap);
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p = snewn(len + 1, wchar_t);
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wcscpy(p, s1);
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q = p + wcslen(p);
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va_start(ap, s1);
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while (1) {
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sn = va_arg(ap, wchar_t *);
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if (!sn)
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break;
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wcscpy(q, sn);
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q += wcslen(q);
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}
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va_end(ap);
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return p;
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}
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