scc

commit 8a6918d48bb8ecbc1c2af2c72b2e89a3df3a999b
parent 4ac2c9373b1004d4176807d0b106c97cbdab8163
Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date:   Tue, 25 Mar 2025 21:26:58 +0100

libc/wchar: Add wcschr()

Diffstat:
M
src/libc/objs/common-objs.mk
 | 
1
+
A
src/libc/wchar/wcschr.c
 | 
11
+++++++++++
M
tests/libc/execute/.gitignore
 | 
1
+
A
tests/libc/execute/0057-wcschr.c
 | 
44
++++++++++++++++++++++++++++++++++++++++++++
M
tests/libc/execute/libc-tests.lst
 | 
1
+

5 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/src/libc/objs/common-objs.mk b/src/libc/objs/common-objs.mk
@@ -133,6 +133,7 @@ COMMON_OBJS =\
 	wchar/wcscpy.$O\
 	wchar/wcscat.$O\
 	wchar/wcsncat.$O\
+	wchar/wcschr.$O\
 	wchar/wcsrtombs.$O\
 	wchar/wcwidth.$O\
 	wchar/wmemchr.$O\
diff --git a/src/libc/wchar/wcschr.c b/src/libc/wchar/wcschr.c
@@ -0,0 +1,11 @@
+#include <wchar.h>
+
+#undef wcschr
+
+wchar_t *
+wcschr(const wchar_t *s, wchar_t c)
+{
+	while (*s && *s != c)
+		++s;
+	return (*s == c) ? (wchar_t *) s : NULL;
+}
diff --git a/tests/libc/execute/.gitignore b/tests/libc/execute/.gitignore
@@ -53,4 +53,5 @@
 0054-wcsncpy
 0055-wcscat
 0056-wcsncat
+0057-wcschr
 test.log
diff --git a/tests/libc/execute/0057-wcschr.c b/tests/libc/execute/0057-wcschr.c
@@ -0,0 +1,44 @@
+#include <assert.h>
+#include <stdio.h>
+#include <wchar.h>
+
+/*
+output:
+testing
+done
+end:
+*/
+
+int
+main()
+{
+	wchar_t *p, buf[] = L"abcad";
+
+	puts("testing");
+
+	p = wcschr(buf, 0);
+	assert(p == buf+5);
+	assert(*p == '\0');
+
+	p = wcschr(buf, 'a');
+	assert(p == buf);
+	assert(*p == 'a');
+
+	p = wcschr(buf, 'd');
+	assert(p == buf+4);
+	assert(*p == 'd');
+
+	p = wcschr(buf, 'c');
+	assert(p == buf+2);
+	assert(*p == 'c');
+
+	p = wcschr(buf, 'h');
+	assert(p == NULL);
+
+	p = wcschr("", 'a');
+	assert(p == NULL);
+
+	puts("done");
+
+	return 0;
+}
diff --git a/tests/libc/execute/libc-tests.lst b/tests/libc/execute/libc-tests.lst
@@ -52,3 +52,4 @@
 0054-wcsncpy
 0055-wcscat
 0056-wcsncat
+0057-wcschr