Initial commit

src/include/string/Makefile

@@ -0,0 +1,12 @@
+objects := $(patsubst %.c,%.o,$(wildcard *.c))
+subdirs := 
+OBJPATH=$(OBJDIR)/include/string
+export
+
+all: $(subdirs) $(objects)
+	for subdir in $(subdirs) ; do $(MAKE) -C $${subdir} ; done
+
+%.o: %.c
+	$(CC) $(CFLAGS) -o $@ $<
+	mkdir -p $(OBJPATH) 
+	cp $@ $(OBJPATH)/$@

src/include/string/memcpy.c

@@ -0,0 +1,15 @@
+#include <stddef.h>
+#include <stdint.h>
+
+void* memcpy(void* d, void* s, size_t c){
+
+        uint8_t* sc = (uint8_t*)s;
+        uint8_t* dc = (uint8_t*)d;
+
+        while(c--)
+                *dc++ = *sc++;
+
+        return d;
+
+}
+

src/include/string/memset.c

@@ -0,0 +1,9 @@
+#include <stddef.h>
+
+void* memset(void* ptr, unsigned long value, size_t num){
+        char* p = (char*)ptr;
+        while(num--)
+                *p++ = value;
+
+        return ptr;
+}

src/include/string/strcat.c

@@ -0,0 +1,12 @@
+#include <string.h>
+
+
+char *strcat(char *dest, const char * src){
+	
+	dest += strlen(dest);
+
+	strcpy(dest, src);
+
+	return dest;
+	
+}

src/include/string/strcmp.c

@@ -0,0 +1,8 @@
+int strcmp(const char* a, const char* b){
+
+        while(*a && (*a++ == *b++));
+
+        return  *(const unsigned char*)a - *(const unsigned char*)b;
+
+}
+

src/include/string/strcpy.c

@@ -0,0 +1,13 @@
+void strcpy(char* p, const char * s)
+{
+        const char * temp1 = s;
+        char * temp2 = p;
+        while(*temp1 != '\0')
+        {
+                *temp2 = *temp1;
+                temp1++;
+                temp2++;
+        }
+        *temp2 = '\0';
+}
+

src/include/string/strlen.c

@@ -0,0 +1,10 @@
+#include <stddef.h>
+
+size_t strlen(const char* a){
+
+        size_t s = 0;
+        while(a[s] != '\0') ++s;
+        return s;
+
+}
+

src/include/string/strncmp.c

@@ -0,0 +1,13 @@
+#include <stddef.h>
+
+int strncmp(const char *a, const char *b, size_t c){
+
+        int diff = 0;
+
+        while(c--)
+                diff += *a++ - *b++;
+
+
+        return diff;
+
+}