Added Basic Error codes, Tests and de-inliningmain

Error codes needs to be ingrated with the alloc module
Tests now have great coverage in the mem module (>75%).

Signed-off-by: Marc Pervaz Boocha <mboocha@sudomsg.xyz>

On branch main
Your branch is up to date with 'origin/main'.

Changes to be committed:
      modified:   include/alloc.h
      new file:   include/err.h
      modified:   include/mem.h
      modified:   include/meson.build
      modified:   readme.md
      modified:   src/alloc/free.c
      modified:   src/alloc/malloc.c
      new file:   src/err/errstr.c
      new file:   src/err/meson.build
      new file:   src/err/set_err.c
      modified:   src/mem/memccpy.c
      modified:   src/mem/memchr.c
      modified:   src/mem/memcmp.c
      modified:   src/mem/memcpy.c
      modified:   src/mem/memlen.c
      modified:   src/mem/memmem.c
      modified:   src/mem/memmove.c
      modified:   src/mem/memrchr.c
      modified:   src/mem/memrev.c
      modified:   src/mem/memset.c
      modified:   src/mem/memswap.c
      modified:   src/mem/memzero.c
      modified:   src/meson.build
      new file:   test/alloc/memdup.c
      modified:   test/alloc/meson.build
      new file:   test/mem/memccpy_nullnull.c
      new file:   test/mem/memchr.c
      new file:   test/mem/memchr_notfound.c
      new file:   test/mem/memcmp_diff.c
      new file:   test/mem/memcmp_prefix.c
      new file:   test/mem/memcmp_same.c
      new file:   test/mem/memcmp_samenull.c
      new file:   test/mem/memcmp_sing.c
      new file:   test/mem/memcpy_null_prefix.c
      new file:   test/mem/memcpy_null_same.c
      new file:   test/mem/memcpy_nullnull.c
      new file:   test/mem/memcpy_prefix.c
      new file:   test/mem/memcpy_same.c
      new file:   test/mem/memlen.c
      new file:   test/mem/memlen_overflow.c
      new file:   test/mem/memmove_backward.c
      new file:   test/mem/memmove_null_backward.c
      new file:   test/mem/memmove_null_overlap.c
      new file:   test/mem/memmove_null_prefix.c
      new file:   test/mem/memmove_null_same.c
      new file:   test/mem/memmove_null_sing.c
      new file:   test/mem/memmove_nullnull.c
      new file:   test/mem/memmove_overlap.c
      new file:   test/mem/memmove_prefix.c
      new file:   test/mem/memmove_same.c
      new file:   test/mem/memmove_sing.c
      new file:   test/mem/memrchr.c
      new file:   test/mem/memrchr_notfound.c
      new file:   test/mem/memrev.c
      new file:   test/mem/memset_null.c
      new file:   test/mem/memset_nullnull.c
      new file:   test/mem/memswap.c
      new file:   test/mem/memswap_null.c
      new file:   test/mem/memswap_same.c
      new file:   test/mem/memzero_null.c
      new file:   test/mem/memzero_nullnull.c
      modified:   test/mem/meson.build
      modified:   test/meson.build

1 files changed, 21 insertions, 150 deletions

diff --git a/include/mem.h b/include/mem.h
index b18822c..4136c76 100644
--- a/include/mem.h
+++ b/include/mem.h
@@ -7,159 +7,30 @@
 #define CALT_MEM_H
 #include <stddef.h>
 
-inline void *calt_memset(void *restrict dest, unsigned char value, size_t count) {
-	unsigned char *p = dest;
 
-	while (count-- > 0) {
-		*p++ = value;
-	}
-
-	return dest;
-}
-
-inline void *calt_memset_null(void *dest, unsigned char value, size_t count) {
-	return dest ? calt_memset(dest, value, count) : NULL;
-}
-
-inline void *calt_memzero(void *dest, size_t count) {
-	return calt_memset(dest, '\0', count);
-}
-
-inline void *calt_memzero_null(void *dest, size_t count) {
-	return dest ? calt_memzero(dest, count) : NULL;
-}
-
-inline void *calt_memcpy(void *restrict dest, const void *restrict src,
-		       size_t count) {
-	unsigned char *d = dest;
-	unsigned char const *s = src;
-
-	while (count-- > 0) {
-		*d++ = *s++;
-	}
-
-	return dest;
-}
-
-
-inline void *calt_memcpy_null(void *restrict dest, void const *restrict src,
-			    size_t count) {
-	return dest ? calt_memcpy(dest, src, count) : NULL;
-}
+extern void *calt_memset(void *dest, unsigned char value, size_t count);
+extern void *calt_memset_null(void *dest, unsigned char value, size_t count);
+extern void *calt_memzero(void *restrict dest, size_t count);
+extern void *calt_memzero_null(void *restrict dest, size_t count);
+extern void *calt_memcpy(void *restrict dest, void const *restrict src,
+			      size_t count);
+extern void *calt_memcpy_null(void *restrict dest, void const *restrict src,
+			      size_t count);
 
 extern void *calt_memccpy(void *restrict dest, void const *restrict src,
 			unsigned char value, size_t count);
-inline void *calt_memccpy_null(void *restrict dest, void const *restrict src,
-			     unsigned char value, size_t count) {
-	return dest ? calt_memccpy(dest, src, value, count) : NULL;
-}
-
-inline void *calt_memmove(void *dest, void const *src, size_t count) {
-	unsigned char *d = dest;
-	unsigned char const *s = src;
-
-	if (d > s) {
-		d += count;
-		s += count;
-		while (count-- > 0) {
-			*--d = *--s;
-		}
-	} else if (d < s) {
-		calt_memcpy(dest, src, count);
-	}
-
-	return dest;
-}
-
-inline void *calt_memmove_null(void *dest, void const *src, size_t count) {
-	return dest ? calt_memmove(dest, src, count) : NULL;
-}
-
-inline void *calt_memchr(void const *ptr, unsigned char value, size_t count) {
-	unsigned char const *p = ptr;
-
-	while (count-- > 0) {
-		if (*p == value) {
-			return (void *)p;
-		}
-		p++;
-	}
-
-	return NULL;
-}
-
-inline void *calt_memrchr(void const *ptr, unsigned char value, size_t count) {
-	unsigned char const *p = ptr;
-	p = p + count;
-
-	while (count > 0) {
-		if (*(--p) == value) {
-			return (void *)p;
-		}
-	}
-
-	return NULL;
-}
-
-inline int calt_memcmp(const void *ptr1, const void *ptr2, size_t count) {
-	const unsigned char *p1 = ptr1;
-	const unsigned char *p2 = ptr2;
-
-	while (count-- > 0) {
-		if (*p1 != *p2) {
-			return (*p1 < *p2) ? -1 : 1;
-		}
-		p1++;
-		p2++;
-	}
-
-	return 0;
-}
-
-inline void calt_memswap(void *restrict ptr1, void *restrict ptr2, size_t size) {
-	unsigned char *p1 = ptr1;
-	unsigned char *p2 = ptr2;
-	while (size-- > 0) {
-		unsigned char temp = *p1;
-		*p1++ = *p2;
-		*p2++ = temp;
-	}
-}
-
-inline size_t calt_memlen(void const* ptr, unsigned char value, size_t size) {
-    unsigned char const *p = ptr;
-    size_t len = 0;
-
-    while (size-- > 0 && *p != value) {
-        p++;
-        len++;
-    }
-
-    return len;
-}
-
+extern void *calt_memccpy_null(void *restrict dest, void const *restrict src,
+			     unsigned char value, size_t count);
+extern void *calt_memmove(void *dest, void const *src, size_t count);
+extern void *calt_memmove_null(void *dest, void const *src, size_t count);
+extern void *calt_memchr(void const *ptr, unsigned char value, size_t count);
+extern void *calt_memrchr(void const *ptr, unsigned char value, size_t count);
+extern void *calt_memrchr(void const *ptr, unsigned char value, size_t count);
+extern int calt_memcmp(void const *ptr1, void const *ptr2, size_t count);
+extern void calt_memswap(void *restrict ptr1, void *restrict ptr2, size_t size);
+extern size_t calt_memlen(void const *ptr, unsigned char value, size_t count);
 extern size_t calt_memhash(void const *ptr, size_t count);
-
-inline void *calt_memmem(void const *haystack, size_t haystacklen,
-		       void const *needle, size_t needlelen) {
-	unsigned char const *p = haystack;
-	unsigned char const *end = p + haystacklen - needlelen;
-	while (p <= end) {
-		if (calt_memcmp(p, needle, needlelen) == 0) {
-			return (void *)p;
-		}
-		p++;
-	}
-	return NULL;
-}
-
-inline void calt_memrev(void *ptr, size_t size) {
-	unsigned char *p1 = ptr;
-	unsigned char *p2 = p1 + size - 1;
-	while (p1 < p2) {
-		unsigned char temp = *p1;
-		*p1++ = *p2;
-		*p2-- = temp;
-	}
-}
+extern void *calt_memmem(void const *haystack, size_t haystacklen,
+			      void const *needle, size_t needlelen);
+extern void *calt_memrev(void *ptr, size_t size);
 #endif