fputs函数无法写东西进文件？

Question

出错内容请看代码中的汉字注释。

#include "precompile.h"

Status macro_collect(const char *sourcefile,
            struct macro_argument **macro_argument_head,     
            struct macro_no_argument **macro_no_argument_head)
{ 
    int flag1 = 1;
    int flag2 = 1;
    FILE *fpa;
    FILE *fpb;
    char curLine[MAX_LINE];
    ma *malhead;  /* ma --> struct macro_argument */
    ma *maltail;
    mna *mnalhead;/* mna -->struct macro_no_argument */
    mna *mnaltail;

    malhead = (ma *)malloc(sizeof(ma));
    maltail = malhead;
    mnalhead = (mna *)malloc(sizeof(mna));
    mnaltail = mnalhead;
    if (NULL == (fpa=fopen(sourcefile, "r")) ||
        NULL == (fpb=fopen("temp2.c", "w")))
    {
        printf("Cannot open the file!\n");
        return ERROR;
    }
    while (TRUE)
    {
        if (feof(fpa))
        {
            break; // end of file 
        }
        if (NULL == fgets(curLine, MAX_LINE-1, fpa))
        {
            printf("fgets error!\n");
            return ERROR;
        }
        delete_blank(curLine);
        if (1 == flag1)
        {
            flag1 = 0;
            maltail->next = (ma *)malloc(sizeof(ma));
            maltail = maltail->next;
        }
        if (1 == flag2)
        {
            flag2 = 0;
            mnaltail->next = (mna *)malloc(sizeof(mna));
            mnaltail = mnaltail->next;
        }
        /* 
         * If macro_collect_line() return SUCCESS, which means the current     * line's macro information has been collected successfully, then      * continue to check the next line.
         * Else return UNSUCCESS, which means the current line has no macro,   * then copy the current line to the "temp2.c" directly and continue    * to check the next line. */
        if (UNSUCCESS == macro_collect_line(curLine, &maltail, &mnaltail,
                                            &flag1, &flag2))
        {
            printf("%s\n",curLine);/* 此处字符串curLine可以正常输出内容，但是接下来的fputs函数却没有向文件temp2.c中写入该字符串。*/

            if (EOF == fputs(curLine, fpb))
            {
                printf("Write file error!\n");
                return ERROR;
            }
        }
    }
    fclose(fpa);
    fclose(fpb);
    (*macro_argument_head) = malhead->next;
    (*macro_no_argument_head) = mnalhead->next;
    return OK;
}

Answer 1

现在正常了，虽然没有修改代码，但是可以写入文件了。至于之前为什么写不进去，没找到原因。