scc

commit f82bc6684d7c33065ce616b79528e7a0e439d1df
parent 391c2dacb748852e77bfe811556b145ecdda684b
Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date:   Tue, 25 Mar 2025 19:03:27 +0100

libc/wchar: Add wmemcpy()

Diffstat:
M
src/libc/objs/common-objs.mk
 | 
1
+
A
src/libc/wchar/wmemcpy.c
 | 
10
++++++++++
M
tests/libc/execute/.gitignore
 | 
1
+
A
tests/libc/execute/0050-wmemcpy.c
 | 
24
++++++++++++++++++++++++
M
tests/libc/execute/libc-tests.lst
 | 
1
+

5 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/src/libc/objs/common-objs.mk b/src/libc/objs/common-objs.mk
@@ -134,5 +134,6 @@ COMMON_OBJS =\
 	wchar/wcsrtombs.$O\
 	wchar/wcwidth.$O\
 	wchar/wmemchr.$O\
+	wchar/wmemcpy.$O\
 	wchar/putwc.$O\
 	wchar/_validutf8.$O\
diff --git a/src/libc/wchar/wmemcpy.c b/src/libc/wchar/wmemcpy.c
@@ -0,0 +1,10 @@
+#include <string.h>
+#include <wchar.h>
+
+#undef wmemcpy
+
+wchar_t *
+wmemcpy(wchar_t *restrict d, const wchar_t *restrict s, size_t n)
+{
+	return memcpy(d, s, n * sizeof(wchar_t));
+}
diff --git a/tests/libc/execute/.gitignore b/tests/libc/execute/.gitignore
@@ -46,4 +46,5 @@
 0047-wcscoll
 0048-wcscpy
 0049-wmemchr
+0050-wmemcpy
 test.log
diff --git a/tests/libc/execute/0050-wmemcpy.c b/tests/libc/execute/0050-wmemcpy.c
@@ -0,0 +1,24 @@
+#include <assert.h>
+#include <stdio.h>
+#include <wchar.h>
+
+/*
+output:
+testing
+done
+end:
+*/
+
+int
+main()
+{
+	wchar_t buf[40];
+	wchar_t abc[] = {'a', 'b', 'c', '\0'};
+
+	puts("testing");
+	assert(!wmemcmp(wmemcpy(buf, abc, 3), abc, 3));
+	assert(wmemcpy(buf, abc, 0) == buf);
+	puts("done");
+
+	return 0;
+}
diff --git a/tests/libc/execute/libc-tests.lst b/tests/libc/execute/libc-tests.lst
@@ -45,3 +45,4 @@
 0047-wcscoll
 0048-wcscpy
 0049-wmemchr
+0050-wmemcpy