在函数c中返回结构 [英] Returning structs in function c

问题描述

我正在尝试从函数返回struct. 看起来像这样.

I'm trying to return a struct from a function. It looks like this..

struct read(struct returnera returnDuo, struct vara varuArray[]) { 
     char varunr[LISTNUMBER], varunamn[LISTNUMBER];
     FILE *varuLista;
     varuLista = fopen(returnDuo.filnamn, "r");
     if(varuLista!=NULL) {
         while(fscanf(varuLista,"%s\t%s\t%d\n",varunr, varunamn, 
                      &varuArray[returnDuo.antalVaror].lagerSaldo) == 3){ 
            strncpy(varuArray[returnDuo.antalVaror].varuNr,varunr,5);
            strncpy(varuArray[returnDuo.antalVaror].varuNamn,varunamn,30);
            returnDuo.antalVaror++;
        } 
        printf("Filen är laddad..\n"); 
        kommaVidare();
     }
     else {
        printf("Filen hittades inte, skapar en tom fil"); kommaVidare();
     }
     fclose(varuLista);
     return returnDuo;
 }

我正在尝试返回returnDuo结构中的内容，但收到错误消息:期望的标识符或'('".如果我使用void函数，则其按预期方式工作而不返回任何内容，但我无法弄清楚如何返回此struct.

I'm trying to return the content in the returnDuo struct but I get the error message: "Expected identifier or '('". If I use void function its working as expected without returning anything but I cant figure out how to return this struct.

这是我设置结构的方式.

This is how I setup the structs.

struct vara {
    char varuNr[5];
    char varuNamn[50];
    int lagerSaldo;
};

struct returnera {
    int antalVaror;
    char filnamn[LISTNUMBER];
};

以及我如何在主目录中设置它们.

And how I setup them up in main.

struct vara varuArray[SIZE];

struct returnera returnDuo = {0,"0"};

我很高兴提出了一些有关如何使其正常工作的提示...

I gladly take any tips on how to get this to work...

推荐答案

应为

struct returnera read(struct returnera returnDuo, struct vara varuArray[])

不是

struct read(struct returnera returnDuo, struct vara varuArray[])

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