Nigel
e6901f0526
The uri has to contain 8.3 filenames for now as I have not yet figured out how to convert from that to regular filenaming for the name comparison. reading files is still limited to 1 sector
109 lines
1.9 KiB
C++
109 lines
1.9 KiB
C++
//
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// Created by nigel on 19/02/23.
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//
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#include "Memory.h"
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void* memset (void* ptr, int value, size_t num)
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{
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for( int i = 0; i < num; i++ )
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{
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unsigned char* data = (unsigned char*)ptr+ i;
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*data = (unsigned char)value;
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}
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return ptr;
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}
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int memcmp( const void* ptr1, const void* ptr2, size_t num)
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{
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const unsigned char * cs = (const unsigned char*) ptr1;
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const unsigned char * ct = (const unsigned char*) ptr2;
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for (int i = 0 ; i < num ; i++, cs++, ct++ ){
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if( *cs < *ct){
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return -1;
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} else if( *cs > *ct){
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return 1;
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}
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}
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return 0;
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}
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[[maybe_unused]] void memcpy (void* dest, const void* src, size_t count ){
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for( int i = 0; i < count; i++){
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((char *)dest)[i] = ((const char*)src)[i];
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}
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}
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size_t strlen(const char* str) {
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size_t len = 0;
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while(str[len]){
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len++;
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}
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return len;
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}
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int strncmp ( const char* str1, const char* str2, size_t num ){
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for( int i = 0; i < num ; i++){
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if( str1[i] < str2[i]){
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return -1;
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}
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if( str1[i] > str2[i] ){
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return 1;
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}
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}
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return 0;
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}
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char* strchr(const char* s , int c){
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while(*s) {
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if(*s == c) return const_cast<char*>(s);
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s++;
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}
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return NULL;
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}
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char* strtok(char* str, const char* delim , char**saveptr){
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char *begin;
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if(str) {
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begin = str;
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}
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else if (*saveptr) {
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begin = *saveptr;
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}
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else {
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return NULL;
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}
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while(strchr(delim, begin[0])) {
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begin++;
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}
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char *next = NULL;
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for(int i = 0; i < strlen(delim); i++) {
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char *temp = strchr(begin, delim[i]);
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if(temp < next || next == NULL) {
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next = temp;
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}
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}
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if(!next) {
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*saveptr = NULL;
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return begin;
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}
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*next = 0;
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*saveptr=next+1;
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return begin;
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} |