libc/wchar: Add wcscat() - scc - simple c99 compiler
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---
(DIR) commit 949d7de20391cbcb0a6ce10cf2080abb7914b6b5
(DIR) parent 7aa86bd1b38fb9ddd568ed8c13f534a274f50fbb
(HTM) Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date: Tue, 25 Mar 2025 20:50:32 +0100
libc/wchar: Add wcscat()
Diffstat:
M src/libc/objs/common-objs.mk | 1 +
A src/libc/wchar/wcscat.c | 16 ++++++++++++++++
M tests/libc/execute/.gitignore | 1 +
A tests/libc/execute/0055-wcscat.c | 36 +++++++++++++++++++++++++++++++
M tests/libc/execute/libc-tests.lst | 1 +
5 files changed, 55 insertions(+), 0 deletions(-)
---
(DIR) diff --git a/src/libc/objs/common-objs.mk b/src/libc/objs/common-objs.mk
@@ -131,6 +131,7 @@ COMMON_OBJS =\
wchar/wcscoll.$O\
wchar/wcsncmp.$O\
wchar/wcscpy.$O\
+ wchar/wcscat.$O\
wchar/wcsrtombs.$O\
wchar/wcwidth.$O\
wchar/wmemchr.$O\
(DIR) diff --git a/src/libc/wchar/wcscat.c b/src/libc/wchar/wcscat.c
@@ -0,0 +1,16 @@
+#include <wchar.h>
+
+#undef wcscat
+
+wchar_t *
+wcscat(wchar_t *restrict s1, const wchar_t *restrict s2)
+{
+ wchar_t *p;
+
+ for (p = s1; *p; ++p)
+ ;
+ while ((*p++ = *s2++) != 0)
+ ;
+
+ return s1;
+}
(DIR) diff --git a/tests/libc/execute/.gitignore b/tests/libc/execute/.gitignore
@@ -51,4 +51,5 @@
0051-wmemmove
0053-wmemcmp
0054-wcsncpy
+0055-wcscat
test.log
(DIR) diff --git a/tests/libc/execute/0055-wcscat.c b/tests/libc/execute/0055-wcscat.c
@@ -0,0 +1,36 @@
+#include <assert.h>
+#include <stdio.h>
+#include <wchar.h>
+
+/*
+output:
+testing
+ok
+end:
+*/
+
+int
+main(void)
+{
+ wchar_t *s, buf[40];
+
+ puts("testing");
+ wcscpy(buf, L"case1:");
+ s = wcscat(buf, L"ok");
+ assert(s == buf);
+ assert(!wcscmp(s, L"case1:ok"));
+
+ wcscpy(buf, L"");
+ s = wcscat(buf, L"ok");
+ assert(s == buf);
+ assert(!wcscmp(s, L"ok"));
+
+ wcscpy(buf, L"case1:");
+ wcscat(buf, L"");
+ assert(s == buf);
+ assert(!wcscmp(s, L"case1:"));
+
+ puts("ok");
+
+ return 0;
+}
(DIR) diff --git a/tests/libc/execute/libc-tests.lst b/tests/libc/execute/libc-tests.lst
@@ -50,3 +50,4 @@
0052-wmemset
0053-wmemcmp
0054-wcsncpy
+0055-wcscat