[libc-commits] [libc] 56e19de - [libc] Implement iswspace entrypoint (#185269)
via libc-commits
libc-commits at lists.llvm.org
Wed Mar 11 06:56:58 PDT 2026
Author: Jiří Filek
Date: 2026-03-11T06:56:54-07:00
New Revision: 56e19de931b8798eebf19c1b2dc2f24badeb737a
URL: https://github.com/llvm/llvm-project/commit/56e19de931b8798eebf19c1b2dc2f24badeb737a
DIFF: https://github.com/llvm/llvm-project/commit/56e19de931b8798eebf19c1b2dc2f24badeb737a.diff
LOG: [libc] Implement iswspace entrypoint (#185269)
Implement entrypoint for iswspace function and related test
Part of #185136
Added:
libc/src/wctype/iswspace.cpp
libc/src/wctype/iswspace.h
libc/test/src/wctype/iswspace_test.cpp
Modified:
libc/config/baremetal/arm/entrypoints.txt
libc/config/baremetal/riscv/entrypoints.txt
libc/config/darwin/aarch64/entrypoints.txt
libc/config/linux/aarch64/entrypoints.txt
libc/config/linux/arm/entrypoints.txt
libc/config/linux/riscv/entrypoints.txt
libc/config/linux/x86_64/entrypoints.txt
libc/config/windows/entrypoints.txt
libc/include/wctype.yaml
libc/src/wctype/CMakeLists.txt
libc/test/src/wctype/CMakeLists.txt
Removed:
################################################################################
diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index c61afd0fdcc62..f45ee7a9052f4 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -302,6 +302,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
# internal entrypoints
libc.startup.baremetal.init
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index 24e9cc502b731..76e10e7d26a0a 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -299,6 +299,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
# internal entrypoints
libc.startup.baremetal.init
diff --git a/libc/config/darwin/aarch64/entrypoints.txt b/libc/config/darwin/aarch64/entrypoints.txt
index 5085e95a643ec..4f5fc6831dd3f 100644
--- a/libc/config/darwin/aarch64/entrypoints.txt
+++ b/libc/config/darwin/aarch64/entrypoints.txt
@@ -105,6 +105,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
)
if(LLVM_LIBC_FULL_BUILD)
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 7957847200960..08b45ad190627 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -372,6 +372,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
# sys/uio.h entrypoints
libc.src.sys.uio.writev
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index 48d5972f71ce0..042247e549340 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -197,6 +197,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
)
if(LLVM_LIBC_FULL_BUILD)
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index 7ebaa4f165c0d..1a4e85292c517 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -376,6 +376,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
# sys/uio.h entrypoints
libc.src.sys.uio.writev
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 4cec9708b0403..57d482dba9271 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -421,6 +421,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswcntrl
libc.src.wctype.iswdigit
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
# sys/uio.h entrypoints
libc.src.sys.uio.writev
diff --git a/libc/config/windows/entrypoints.txt b/libc/config/windows/entrypoints.txt
index 18910b5f98459..7e18a4d8b18d8 100644
--- a/libc/config/windows/entrypoints.txt
+++ b/libc/config/windows/entrypoints.txt
@@ -110,6 +110,7 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.wctype.iswalpha
libc.src.wctype.iswcntrl
libc.src.wctype.iswlower
+ libc.src.wctype.iswspace
)
set(TARGET_LIBM_ENTRYPOINTS
diff --git a/libc/include/wctype.yaml b/libc/include/wctype.yaml
index 9a12f59c3243a..2c6531bafc2ce 100644
--- a/libc/include/wctype.yaml
+++ b/libc/include/wctype.yaml
@@ -20,3 +20,9 @@ functions:
return_type: int
arguments:
- type: wint_t
+ - name: iswspace
+ standards:
+ - stdc
+ return_type: int
+ arguments:
+ - type: wint_t
diff --git a/libc/src/wctype/CMakeLists.txt b/libc/src/wctype/CMakeLists.txt
index c7c65ca43b48e..7dcbf84ab1c85 100644
--- a/libc/src/wctype/CMakeLists.txt
+++ b/libc/src/wctype/CMakeLists.txt
@@ -39,3 +39,14 @@ add_entrypoint_object(
libc.src.__support.wctype_utils
libc.hdr.types.wint_t
)
+
+add_entrypoint_object(
+ iswspace
+ SRCS
+ iswspace.cpp
+ HDRS
+ iswspace.h
+ DEPENDS
+ libc.src.__support.wctype_utils
+ libc.hdr.types.wint_t
+)
diff --git a/libc/src/wctype/iswspace.cpp b/libc/src/wctype/iswspace.cpp
new file mode 100644
index 0000000000000..0ecdd50fa80e2
--- /dev/null
+++ b/libc/src/wctype/iswspace.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of iswspace ----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/wctype/iswspace.h"
+#include "src/__support/common.h"
+#include "src/__support/wctype_utils.h"
+
+#include "hdr/types/wint_t.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(int, iswspace, (wint_t c)) {
+ return internal::isspace(static_cast<wchar_t>(c));
+}
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/wctype/iswspace.h b/libc/src/wctype/iswspace.h
new file mode 100644
index 0000000000000..236e58645da30
--- /dev/null
+++ b/libc/src/wctype/iswspace.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for iswspace ----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_WCTYPE_ISWSPACE_H
+#define LLVM_LIBC_SRC_WCTYPE_ISWSPACE_H
+
+#include "hdr/types/wint_t.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+int iswspace(wint_t c);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_WCTYPE_ISWSPACE_H
diff --git a/libc/test/src/wctype/CMakeLists.txt b/libc/test/src/wctype/CMakeLists.txt
index 060d1b4744e7b..1538fdf92da65 100644
--- a/libc/test/src/wctype/CMakeLists.txt
+++ b/libc/test/src/wctype/CMakeLists.txt
@@ -41,3 +41,14 @@ add_libc_test(
DEPENDS
libc.src.wctype.iswlower
)
+
+add_libc_test(
+ iswspace_test
+ SUITE
+ libc_wctype_unittests
+ SRCS
+ iswspace_test.cpp
+ DEPENDS
+ libc.src.wctype.iswspace
+)
+
diff --git a/libc/test/src/wctype/iswspace_test.cpp b/libc/test/src/wctype/iswspace_test.cpp
new file mode 100644
index 0000000000000..61a1566ffbf86
--- /dev/null
+++ b/libc/test/src/wctype/iswspace_test.cpp
@@ -0,0 +1,26 @@
+//===-- Unittests for iswspace --------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/wctype/iswspace.h"
+
+#include "test/UnitTest/Test.h"
+
+TEST(LlvmLibciswspace, SimpleTest) {
+ EXPECT_NE(LIBC_NAMESPACE::iswspace(' '), 0);
+ EXPECT_NE(LIBC_NAMESPACE::iswspace('\t'), 0);
+ EXPECT_NE(LIBC_NAMESPACE::iswspace('\n'), 0);
+ EXPECT_NE(LIBC_NAMESPACE::iswspace('\v'), 0);
+ EXPECT_NE(LIBC_NAMESPACE::iswspace('\f'), 0);
+ EXPECT_NE(LIBC_NAMESPACE::iswspace('\r'), 0);
+
+ EXPECT_EQ(LIBC_NAMESPACE::iswspace('a'), 0);
+ EXPECT_EQ(LIBC_NAMESPACE::iswspace('3'), 0);
+ EXPECT_EQ(LIBC_NAMESPACE::iswspace('?'), 0);
+ EXPECT_EQ(LIBC_NAMESPACE::iswspace('\0'), 0);
+ EXPECT_EQ(LIBC_NAMESPACE::iswspace(-1), 0);
+}
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