73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/* size_t mbrtoc32( char32_t *, const char *, size_t, mbstate_t * )
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This file is part of the Public Domain C Library (PDCLib).
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Permission is granted to use, modify, and / or redistribute at will.
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*/
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#ifndef REGTEST
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#include <uchar.h>
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#include <errno.h>
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#include <stdint.h>
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#include <assert.h>
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#include "_PDCLIB_encoding.h"
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#include "_PDCLIB_locale.h"
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size_t mbrtoc32_l(
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char32_t *restrict pc32,
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const char *restrict s,
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size_t n,
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mbstate_t *restrict ps,
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locale_t restrict l
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)
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{
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size_t dstlen = 1;
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size_t nr = n;
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if(l->_Codec->__mbstoc32s(&pc32, &dstlen, &s, &nr, ps)) {
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// Successful conversion
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if(dstlen == 0) {
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// A character was output
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if(nr == n) {
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// The output character resulted entirely from stored state
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// With UTF-32, this shouldn't be possible?
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return (size_t) -3;
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} else if(pc32[-1] == 0) {
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// Was null character
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return 0;
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} else {
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// Count of processed characters
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return n - nr;
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}
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} else {
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assert(nr == 0 && "Must have processed whole input");
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return (size_t) -2;
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}
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} else {
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// Failed conversion
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errno = EILSEQ;
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return (size_t) -1;
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}
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}
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size_t mbrtoc32(
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char32_t *restrict pc32,
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const char *restrict s,
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size_t n,
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mbstate_t *restrict ps
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)
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{
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return mbrtoc32_l(pc32, s, n, ps, _PDCLIB_threadlocale());
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}
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#endif
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#ifdef TEST
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#include "_PDCLIB_test.h"
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int main( void )
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{
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TESTCASE( NO_TESTDRIVER );
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return TEST_RESULTS;
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}
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#endif
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