git: 7326bc7f9c14 - main - sys/limits.h: add C23 _WIDTH macros

The branch main has been updated by fuz:

URL: https://cgit.FreeBSD.org/src/commit/?id=7326bc7f9c14f86976a7769906b167ff96140809

commit 7326bc7f9c14f86976a7769906b167ff96140809
Author:     Robert Clausecker <fuz@FreeBSD.org>
AuthorDate: 2025-11-19 12:29:58 +0000
Commit:     Robert Clausecker <fuz@FreeBSD.org>
CommitDate: 2025-11-30 19:21:47 +0000

    sys/limits.h: add C23 _WIDTH macros
    
    For compliance with IOS/IEC 9899:2024 ("C23").
    
    These macros define the width in bits of the basic integer types.
    Another new macro, BITINT_MAXWIDTH, is not yet included as I do not
    understand what it should be set to.  Perhaps it is compiler-specific.
    
    Approved by:    markj (mentor)
    MFC after:      1 month
    Differential Revision:  https://reviews.freebsd.org/D53825
---
 sys/arm/include/_limits.h     |  3 +++
 sys/arm64/include/_limits.h   |  3 +++
 sys/powerpc/include/_limits.h |  3 +++
 sys/riscv/include/_limits.h   |  3 +++
 sys/sys/limits.h              | 20 ++++++++++++++++++++
 sys/x86/include/_limits.h     |  3 +++
 6 files changed, 35 insertions(+)

diff --git a/sys/arm/include/_limits.h b/sys/arm/include/_limits.h
index 8cd48337508e..d6bcb09bda84 100644
--- a/sys/arm/include/_limits.h
+++ b/sys/arm/include/_limits.h
@@ -42,6 +42,9 @@
  */
 
 #define	__CHAR_BIT	8		/* number of bits in a char */
+#define __SHRT_BIT	16		/* number of bits in a short */
+#define __INT_BIT	32		/* number of bits in an int */
+#define __LLONG_BIT	64		/* number of bits in a long long */
 
 #define	__SCHAR_MAX	0x7f		/* max value for a signed char */
 #define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
diff --git a/sys/arm64/include/_limits.h b/sys/arm64/include/_limits.h
index 08649b5c779d..aeb72dc19b09 100644
--- a/sys/arm64/include/_limits.h
+++ b/sys/arm64/include/_limits.h
@@ -41,6 +41,9 @@
  */
 
 #define	__CHAR_BIT	8		/* number of bits in a char */
+#define __SHRT_BIT	16		/* number of bits in a short */
+#define __INT_BIT	32		/* number of bits in an int */
+#define __LLONG_BIT	64		/* number of bits in a long long */
 
 #define	__SCHAR_MAX	0x7f		/* max value for a signed char */
 #define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
diff --git a/sys/powerpc/include/_limits.h b/sys/powerpc/include/_limits.h
index 542248e51498..cae389ef0f36 100644
--- a/sys/powerpc/include/_limits.h
+++ b/sys/powerpc/include/_limits.h
@@ -42,6 +42,9 @@
  */
 
 #define	__CHAR_BIT	8		/* number of bits in a char */
+#define __SHRT_BIT	16		/* number of bits in an short */
+#define __INT_BIT	32		/* number of bits in an int */
+#define __LLONG_BIT	64		/* number of bits in a long long */
 
 #define	__SCHAR_MAX	0x7f		/* max value for a signed char */
 #define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
diff --git a/sys/riscv/include/_limits.h b/sys/riscv/include/_limits.h
index 95e86c14e168..872e5b610e0c 100644
--- a/sys/riscv/include/_limits.h
+++ b/sys/riscv/include/_limits.h
@@ -37,6 +37,9 @@
  */
 
 #define	__CHAR_BIT	8		/* number of bits in a char */
+#define __SHRT_BIT	16		/* number of bits in a short */
+#define __INT_BIT	32		/* number of bits in an int */
+#define __LLONG_BIT	64		/* number of bits in a long long */
 
 #define	__SCHAR_MAX	0x7f		/* max value for a signed char */
 #define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
diff --git a/sys/sys/limits.h b/sys/sys/limits.h
index 2cb0051fe86c..8044d4458639 100644
--- a/sys/sys/limits.h
+++ b/sys/sys/limits.h
@@ -68,6 +68,26 @@
 #define	LLONG_MIN	__LLONG_MIN	/* min for a long long */
 #endif
 
+#if __ISO_C_VISIBLE >= 2023
+#define BOOL_WIDTH	1		/* number of bits in a bool */
+
+#define CHAR_WIDTH	__CHAR_BIT	/* number of bits in a char */
+#define SCHAR_WIDTH	__CHAR_BIT	/* number of bits in a signed char */
+#define UCHAR_WIDTH	__CHAR_BIT	/* number of bits in an unsigned char */
+
+#define SHRT_WIDTH	__SHRT_BIT	/* number of bits in a short */
+#define USHRT_WIDTH	__SHRT_BIT	/* number of bits in an unsigned short */
+
+#define INT_WIDTH	__INT_BIT	/* number of bits in an int */
+#define UINT_WIDTH	__INT_BIT	/* number of bits in an unsigned int */
+
+#define LONG_WIDTH	__LONG_BIT	/* number of bits in a long */
+#define ULONG_WIDTH	__LONG_BIT	/* number of bits in an unsigned long */
+
+#define LLONG_WIDTH	__LLONG_BIT	/* number of bits in a long long */
+#define ULLONG_WIDTH	__LLONG_BIT	/* number of bits in an unsigned long long */
+#endif
+
 #if __POSIX_VISIBLE || __XSI_VISIBLE
 #define	SSIZE_MAX	__SSIZE_MAX	/* max value for an ssize_t */
 #endif
diff --git a/sys/x86/include/_limits.h b/sys/x86/include/_limits.h
index 422667a79bc0..fc7cfac1e70d 100644
--- a/sys/x86/include/_limits.h
+++ b/sys/x86/include/_limits.h
@@ -42,6 +42,9 @@
  */
 
 #define	__CHAR_BIT	8		/* number of bits in a char */
+#define __SHRT_BIT	16		/* number of bits in a short */
+#define __INT_BIT	32		/* number of bits in an int */
+#define __LLONG_BIT	64		/* number of bits in a long long */
 
 #define	__SCHAR_MAX	0x7f		/* max value for a signed char */
 #define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */