source code library

git-svn-id: svn://kolibrios.org@5936 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/libs_v2/include/string.c

@@ -0,0 +1,197 @@
+
+#ifndef NULL
+#define NULL ((void*)0)
+#endif
+
+static inline void*  memset(void *mem, int c, unsigned size)
+{
+unsigned i;
+
+for ( i = 0; i < size; i++ )
+	 *((char *)mem+i) = (char) c;
+
+return NULL;	
+}
+
+
+static inline void* memcpy(void *dst, const void *src, unsigned size)
+{
+
+unsigned i;
+
+for ( i = 0; i < size; i++)
+	*(char *)(dst+i) = *(char *)(src+i);
+
+return NULL;
+}
+
+
+static inline int memcmp(const void* buf1, const void* buf2, int count)
+{
+int i;
+for (i=0;i<count;i++)
+	{
+	if (*(unsigned char*)buf1<*(unsigned char*)buf2)
+		return -1;
+	if (*(unsigned char*)buf1>*(unsigned char*)buf2)			
+		return 1;
+	}
+return 0;
+}
+
+static inline char *strcat(char strDest[], char strSource[])
+{
+	int i, j; 
+	i = j = 0;
+	while (strDest[i] != '\0') i++;
+	while ((strDest[i++] = strSource[j++]) != '\0');
+	return strDest;
+}
+
+
+static inline int strcmp(char* string1,char* string2)
+{
+
+while (1)
+{
+if (*string1<*string2)
+	return -1;
+if (*string1>*string2)
+	return 1;
+
+if (*string1=='\0')
+	return 0;
+
+string1++;
+string2++;
+}
+
+}
+
+static inline char *strcpy(char strDest[], const char strSource[])
+{
+	unsigned i;
+	i = 0;
+	while ((strDest[i] = strSource[i]) != '\0') i++;
+	return strDest;
+}
+
+
+char* strncpy(char *strDest, const char *strSource, unsigned n)
+{
+	unsigned i;
+
+	if (! n )
+		return strDest;
+
+	i = 0;
+	while ((strDest[i] = strSource[i]) != '\0')
+		if ( (n-1) == i )
+			break;
+		else
+			i++;
+
+	return strDest;
+}
+
+
+static inline int strlen(const char* string)
+{
+	int i;
+
+	i=0;
+	while (*string++) i++;
+	return i;
+}
+
+
+
+static inline char* strchr(const char* string, int c)
+{
+	while (*string)
+	{
+		if (*string==c)
+			return (char*)string;
+		string++;
+	}	
+	return (char*)0;
+}
+
+
+static inline char* strrchr(const char* string, int c)
+{
+	char* last_found;
+	while (*string)
+	{
+		if (*string==c)
+		{
+			last_found = (char*)string;
+		}
+		string++;
+	}	
+	return last_found;
+}
+
+
+
+static inline void _itoa(int i, char *s)
+{
+	int a, b, c, d;
+	a = (i - i%1000)/1000;
+	b = (i - i%100)/100 - a*10;
+	c = (i - i%10)/10 - a*100 - b*10;
+	d = i%10;
+	s[0] = a + '0';
+	s[1] = b + '0';
+	s[2] = c + '0';
+	s[3] = d + '0';
+	s[4] = 0;
+}
+
+
+ /* reverse:  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> s <20><> <20><><EFBFBD><EFBFBD><EFBFBD> */
+static inline void reverse(char s[])
+ {
+     int i, j;
+     char c;
+ 
+     for (i = 0, j = strlen(s)-1; i<j; i++, j--) {
+         c = s[i];
+         s[i] = s[j];
+         s[j] = c;
+     }
+ }
+
+
+ /* itoa:  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> n <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> s */
+static inline void itoa(int n, char s[])
+ {
+     int i, sign;
+ 
+     if ((sign = n) < 0)
+         n = -n;
+     i = 0;
+     do {
+         s[i++] = n % 10 + '0';
+     } while ((n /= 10) > 0);
+     if (sign < 0)
+         s[i++] = '-';
+     s[i] = '\0';
+     reverse(s);
+ }
+
+
+
+static inline int atoi ( char *s )
+{
+	int i, n;
+
+	n = 0;
+	for ( i = 0; s[i]!= '\0'; ++i)
+		if ((s[i]<'0') || (s[i]>'9'))
+			return 0;
+		else
+			n = 10 * n + s[i] - '0';
+
+	return n;
+}