Shit, that was the wrong string.h

include/arch/string.h

@@ -1,36 +0,0 @@
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>
- *
- * Redistribution and use in source and binary forms, with or without modification, are permitted
- * provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this list of
- *    conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
- *    conditions and the following disclaimer in the documentation and/or other materials
- *    provided with the distribution.
- * 3. Neither the name of the copyright holder nor the names of its contributors may be
- *    used to endorse or promote products derived from this software without specific prior
- *    written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
- * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#ifdef ARCH_ATMEGA328P
-#include <arch/atmega328p/string.h>
-#endif /* ARCH_ATMEGA328P */
-
-#ifdef ARCH_AT91SAM3X8E
-#include <arch/at91sam3x8e/string.h>
-#endif /* ARCH_AT91SAM3X8E */

include/ardix/string.h

@@ -0,0 +1,106 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
+ * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <ardix/types.h>
+
+int memcmp(const void *s1, const void *s2, size_t n);
+
+/**
+ * Copy `n` bytes from `src` to `dest`.
+ *
+ * @param dest: The destination.
+ * @param src: The source.
+ * @param n: The amount of bytes to copy.
+ * @returns A pointer to `dest`.
+ */
+void *memcpy(void *dest, const void *src, size_t n);
+
+/**
+ * Starting from `ptr`, fill `n` bytes with the constant byte `c`.
+ *
+ * @param ptr: The start of the memory region.
+ * @param c: The byte to fill with.
+ * @param n: The amount of bytes to write.
+ * @returns A pointer to `ptr`.
+ */
+void *memset(void *ptr, int c, size_t n);
+
+/**
+ * Copy a memory area.
+ * The two areas may overlap since the individual bytes are copied to a
+ * temporary array first.
+ *
+ * @param dest: The destination address.
+ * @param src: The source address.
+ * @param n: The amount of bytes to copy.
+ * @return a pointer to dest.
+ */
+void *memmove(void *dest, const void *src, size_t n);
+
+/**
+ * Compare the two strings `s1` and `s2`.
+ *
+ * @param s1: The first string.
+ * @param s2: The second string.
+ * @returns `0` if both strings are equal, a positive value f `s1` is greater
+ *	than `s2`, and a negative value if `s1` is less than `s2`.
+ */
+int strcmp(const char *s1, const char *s2);
+
+/**
+ * Copy a `NUL` terminated string from `src` to `dest`.
+ *
+ * @param dest: The destination to copy to.  The memory region must be able to
+ *	hold the entire string plus one byte for the terminator.
+ * @param src: The original string to copy from.
+ * @returns A pointer to the destination string.
+ */
+char *strcpy(char *dest, const char *src);
+
+/**
+ * Copy a `NUL` terminated string from `src` to `dest`, but at most `n`
+ * characters.  Note that this may cause `dest` to miss a `NUL` terminator.
+ *
+ * @param dest: The destination to copy to.  The memory region must be able to
+ *	hold the entire string plus one byte for the terminator.
+ * @param src: The original string to copy from.
+ * @param n: The amount of characters to copy at most.
+ * @returns A pointer to the destination string.
+ */
+char *strncpy(char *dest, const char *src, size_t n);
+
+/**
+ * Compute the length of the `NUL` terminated string `s`.
+ *
+ * @param s: The string.
+ * @returns The length of `s` without the `NUL` terminator.
+ */
+size_t strlen(const char *s);
+
+#include <arch/string.h>