gblib src added

git-svn-id: svn://kolibrios.org@1879 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/gblib/example/system/string.c

@@ -0,0 +1,124 @@
+
+#include "string.h"
+
+void*  memset(void *mem, int c, unsigned size)
+{
+unsigned i;
+
+for ( i = 0; i < size; i++ )
+	 *((char *)mem+i) = (char) c;
+
+return NULL;	
+}
+
+
+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;
+}
+
+
+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;
+}
+
+void strcat(char strDest[], char strSource[])
+{
+
+int i, j;
+ 
+i = j = 0;
+while (strDest[i] != '\0')
+	i++;
+
+while ((strDest[i++] = strSource[j++]) != '\0')
+             ;
+}
+
+
+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++;
+}
+
+}
+
+
+void strcpy(char strDest[], const char strSource[])
+{
+unsigned i;
+
+i = 0;
+while ((strDest[i] = strSource[i]) != '\0')
+	i++;
+
+}
+
+
+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;
+}
+
+
+int strlen(const char* string)
+{
+int i;
+
+i=0;
+while (*string++) i++;
+return i;
+}
+
+
+
+char* strchr(const char* string, int c)
+{
+	while (*string)
+	{
+		if (*string==c)
+			return (char*)string;
+		string++;
+	}	
+	return (char*)0;
+}
+