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The C and C++ Include Header Files

cat -n /usr/include/linux/typelimits.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	#ifndef _LINUX_TYPELIMITS_H
     3	#define _LINUX_TYPELIMITS_H
     4	
     5	#define __KERNEL_INT_MAX ((int)(~0U >> 1))
     6	#define __KERNEL_INT_MIN (-__KERNEL_INT_MAX - 1)
     7	
     8	#endif /* _LINUX_TYPELIMITS_H */