feat: (common) next_pow_of_two, min, max
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0732dc4717
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d13172d535
@ -96,7 +96,7 @@ debug_free (void *ptr, const char *file, size_t line)
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* automatically inserts filename and line.
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*/
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void *
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debug_malloc (size_t size, const char *file, size_t line)
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debug_smalloc (size_t size, const char *file, size_t line)
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{
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void *ptr;
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@ -117,13 +117,11 @@ debug_malloc (size_t size, const char *file, size_t line)
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*
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* @return the pointer to the reallocated memory, or NULL in case of error
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*
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* @errno see realloc(3)
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*
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* @usage the header `debug.h` defines a macro `realloc(ptr, size)` that
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* @usage the header `debug.h` defines a macro `srealloc(ptr, size)` that
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* automatically inserts filename and line.
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*/
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void *
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debug_realloc (void *ptr, size_t size, const char *file, size_t line)
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debug_srealloc (void *ptr, size_t size, const char *file, size_t line)
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{
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void *new_ptr;
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uintptr_t old_ptr;
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@ -1,6 +1,20 @@
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#ifndef CUTILS_COMMON_H_
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#define CUTILS_COMMON_H_
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#include <stddef.h>
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#include <stdint.h>
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#define max(a, b) ((a) > (b) ? (a) : (b))
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#define min(a, b) ((a) < (b) ? (a) : (b))
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#if UINTPTR_MAX == 0xffffffffffffffff
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# define next_pow_of_two(n) (((size_t) 1) << (64 - __builtin_clzll (n)))
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#elif UINTPTR_MAX == 0xffffffff
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# define next_pow_of_two(n) (((size_t) 1) << (64 - __builtin_clz (n)))
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#else
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# error unsupported architecture: size_t expected to be 64-bit or 32-bit.
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#endif
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void *smalloc (size_t size);
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void *srealloc (void *ptr, size_t size);
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