bugfix of last SVN revision

git-svn-id: svn://kolibrios.org@1176 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/libGUI/SRC/string.inc

@@ -0,0 +1,163 @@
+/*
+	some libC function working with memory
+*/
+
+static void *memmove(void *dst,const void *src,size_t length)
+{
+	void *value;
+
+	if (length & 3)
+	{//length not aligned in 4 bytes use reb movsb
+		__asm__ __volatile__(
+		"movl %%edi,%%eax\n\t"
+		"cld\n\t"
+		"rep\n\t"
+		"movsb"
+		:"=D"(value)
+		:"c"(length),"S"(src),"D"(dst)
+		:"eax");
+	}
+	else
+	{//length aligned in 4 bytes use rep movsd
+		length=length >> 2;//length=length/4
+		__asm__ __volatile__(
+		"movl %%edi,%%eax\n\t"
+		"cld\n\t"
+		"rep\n\t"
+		"movsd"
+		:"=D"(value)
+		:"c"(length),"S"(src),"D"(dst)
+		:"eax");
+
+	}
+	return(value);
+}
+
+static  void *memset(const void *dst, int c, size_t length)
+{
+	unsigned char	cfill;
+
+	cfill=c;
+	while(length)
+	{
+		*(char*)dst=c;
+		dst=(char*)dst+1;
+		length--;
+	}
+	return((void*)1);
+}
+
+static size_t strlen(const char *s)
+{
+	size_t	i;
+
+	i=0;
+	while(*s!='\0')
+	{
+		i++;
+		s++;
+	}
+	return(i);
+}
+
+static char* strchr(const char *string, int c)
+{
+	while(*string!='\0')
+	{
+		if (*string==(char)c) return((char*)string);
+		string++;
+	}
+	return(NULL);
+}
+
+static char* strrchr(const char *string, int c)
+{
+	char 	*s;
+	int	i,j;
+
+	s=(char*)string;
+	while(*s!='\0')	{s++;}
+
+	j=(int)(s-string);
+	s--;
+
+	for(i=0;i<j;i++)
+	{
+		if (*s==(char)c) return(s);
+		s--;
+	}
+
+	return(NULL);
+}
+
+static char* strstr(const char *s1,const char *s2)
+{
+	char	*s;
+	int	i,j,len1,len2;
+
+	len2=strlen(s2);
+	if (len2==0) return((char*)s1);
+
+	len1=strlen(s1);
+	for(i=0;i<len1-len2+1;i++)
+	{
+		if (s1[i]==s2[0])
+		{
+			for(j=0;j<len2;j++)
+			{
+				if (s1[i+j]!=s2[j]) break;
+			}
+			if (j==len2) return((char*)(s1+i));
+		}
+	}
+	return(NULL);
+}
+
+static int strcmp(const char* string1, const char* string2)
+{
+	while (1)
+	{
+		if (*string1<*string2)
+			return -1;
+		if (*string1>*string2)
+			return 1;
+		if (*string1=='\0')
+			return 0;
+		string1++;
+		string2++;
+	}
+}
+
+static int strncmp(const char* string1, const char* string2,size_t count)
+{
+	while(count>0 && *string1==*string2)
+	{
+		if (*string1) return 0;
+		++string1;
+		++string2;
+		--count;
+	}
+	if(count) return (*string1 - *string2);
+	return 0;
+}
+
+static int sprintf(char *dest,const char *format,...)
+{
+  va_list arg;
+  va_start (arg, format);
+  return format_print(dest,strlen(dest), format, arg);
+}
+
+static int snprintf(char *dest, size_t size,const char *format,...)
+{
+  va_list arg;
+  va_start (arg, format);
+  return format_print(dest,size, format, arg);
+}
+
+static int vsnprintf(char *dest, size_t size,const char *format,va_list ap)
+{
+  return format_print(dest,size, format, ap);
+}
+
+