fileio.cpp

来自「zlib-1.2.3.tar是新的zlib库藏 用于压缩 等等」· C++ 代码 · 共 66 行

/* Created:06-01-00 */
/* By Jeff Connelly */

#include <stdio.h>
#include "fileio.h"

FILE* input;
FILE* output;

int /*FileIO::*/FileIO(FILE* inp, FILE* outp)
{
    input = inp; output = outp;
    return 0;
}

int /*FileIO::*/end_of_data()
{
    return feof(input);
}

int /*FileIO::*/read_byte()
{
    return fgetc(input);
}

int /*FileIO::*/write_byte(int c)
{
    return fputc(c, output);
}

int /*FileIO::*/beginning_of_data()
{
    return fseek(input, 0L, SEEK_SET);
}

long /*FileIO::*/stream_size()
{
    int current = ftell(input), length;

    fseek(input, 0L, SEEK_END);
    length = ftell(input);
    fseek(input, current, SEEK_SET);
    return length;
}

int /*FileIO::*/write_array(void* array, int size)
{
    return fwrite(array, 1, size, output);
}

int /*FileIO::*/write_block(char c, int number)
{
    char* block = (char*)malloc(number);
    int ret;

    if (!block)
        return -1;

    memset(block, c, number);
    ret = write_array(block, number);
    free(block);
    return ret;
}

}; /* end of namespace */