getdelim函数

利用getdelim函数分割读取字段，将文件制表符替换为空格符

 

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
    char *line = NULL;
    FILE *fp;
    size_t len = 0;
    ssize_t read;

    fp = fopen(argv[1], "r");
    if (fp == NULL)
        exit(EXIT_FAILURE);

    while ((read = getdelim(&line, &len, '\t' ,fp)) != -1) 
    {
        line[read-1] = '\0';
        printf("%s ",line);
    }
    
    if (line)
        free(line);
    fclose(fp);
    exit(EXIT_SUCCESS);

}