101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
#ifndef COMMON_H_
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#define COMMON_H_
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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/** macros ********************************************************************/
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/// define debug macros
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#ifdef DEBUG
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# define DEBUG_ALLOC
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#endif
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/// c11 / c23 compatibility. many of these can be removed once the project fully
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/// migrates to c23, but for now, some of these will have to be used. when
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/// migrating, remember that the usage of macros like `_Noreturn` should be
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/// replaced by c23-specific syntax, in this case the `[[noreturn]]` attribute.
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// if the program is compiled with c23 or newer, define `STDC23` as a feature
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// test macro that is used for enabling features based on if c23 or c11 is used.
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#if __STDC_VERSION__ >= 202000L
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# define STDC23
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#endif
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// enable C11-specific features
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#if !defined(STDC23)
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# define nullptr NULL /* `nullptr` from C23 */
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#endif
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// enable C23-specific features
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#if defined(STDC23)
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# define _Noreturn [[noreturn]]
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#endif
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/// function wrappers
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#ifdef DEBUG_ALLOC
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# define smalloc(nmemb, size) __smalloc (nmemb, size, __FILE__, __LINE__)
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# define scalloc(nmemb, size) __scalloc (nmemb, size, __FILE__, __LINE__)
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# define srealloc(ptr, nmemb, size) __srealloc (ptr, nmemb, size, __FILE__, __LINE__)
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#else
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# define smalloc(nmemb, size) __smalloc (nmemb, size)
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# define scalloc(nmemb, size) __scalloc (nmemb, size)
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# define srealloc(ptr, nmemb, size) __srealloc (ptr, nmemb, size)
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#endif
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/** typedefs ******************************************************************/
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/// common type abbreviations
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typedef signed char schar;
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typedef signed long long llong;
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typedef unsigned char uchar;
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typedef unsigned short ushort;
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typedef unsigned int uint;
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typedef unsigned long ulong;
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typedef unsigned long long ullong;
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typedef int8_t i8;
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typedef int16_t i16;
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typedef int32_t i32;
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typedef int64_t i64;
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typedef uint8_t u8;
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typedef uint16_t u16;
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typedef uint32_t u32;
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typedef uint64_t u64;
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typedef ssize_t isize;
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typedef size_t usize;
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typedef float f32;
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typedef double f64;
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typedef long double f128;
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/** functions *****************************************************************/
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/// safe memory allocation
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#ifdef DEBUG_ALLOC
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void *__smalloc (const usize nmemb, const usize size, const char *const file, const usize line);
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void *__scalloc (const usize nmemb, const usize size, const char *const file, const usize line);
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void *__srealloc (void *ptr, const usize nmemb, const usize size, const char *const file, const usize line);
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void sfree (void *ptr);
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#else
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void *__smalloc (const usize nmemb, const usize size);
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void *__scalloc (const usize nmemb, const usize size);
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void *__srealloc (void *ptr, const usize nmemb, const usize size);
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void sfree (void *ptr);
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#endif
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#endif // COMMON_H_
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