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authorJakob Kaivo <jkk@ung.org>2019-02-08 18:42:39 -0500
committerJakob Kaivo <jkk@ung.org>2019-02-08 18:42:39 -0500
commit7ef8a7379f7f7d09e71ccae2a0b688c3cd80423f (patch)
tree092ab0aed1769117fd7b28b8592f6f96b0e0d5af /src/stdlib/mbtowc.c
parent6acf19370e8adff79cd83b257d3f04aeaf2a59dd (diff)
merge sources into single tree
Diffstat (limited to 'src/stdlib/mbtowc.c')
-rw-r--r--src/stdlib/mbtowc.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/stdlib/mbtowc.c b/src/stdlib/mbtowc.c
new file mode 100644
index 00000000..3704acd4
--- /dev/null
+++ b/src/stdlib/mbtowc.c
@@ -0,0 +1,37 @@
+#include <stdlib.h>
+
+/** convert a multibyte character to a wide character **/
+
+int mbtowc(wchar_t * restrict pwc, const char * restrict s, size_t n)
+{
+ /* FIXME: forward dependency on AMD1 */
+ #if 0
+ static mbstate_t ps = 0;
+ return mbrtowc(pwc, s, n, &ps);
+ #else
+ (void)pwc; (void)s; (void)n;
+ return 0;
+ #endif
+}
+
+/***
+converts the multibyte character, of no more than ARGUMENT(n) bytes, at
+ARGUMENT(s) to a wide character, which is stored at the address pointed to by
+ARGUMENT(pwc).
+
+If ARGUMENT(s) is CONSTANT(NULL), THIS() tests whether multibyte encodings carry
+state dependency.
+
+If ARGUMENT(pwc) is CONSTANT(NULL), THIS() counts the number of bytes in the
+multibyte character at ARGUMENT(s).
+***/
+
+/*
+LC_CTYPE
+RETURN(0, If ARGUMENT(s) is CONSTANT(NULL), multibyte encodings do not have state dependencies)
+RETURN(NONZERO, If ARGUMENT(s) is CONSTANT(NULL), multibyte encodings do have state dependencies)
+RETURN(-1, The ARGUMENT(n) bytes at ARGUMENT(s) do not form a valid mutlibyte character)
+RETURN(0, ARGUMENT(s) points to a null character)
+RETURN(TYPE(int), the number of bytes in the converted multibyte character)
+STDC(1)
+*/