函數不叫

Question

我寫了一個程序，其中調用了一個函數，它返回一個二維數組指針並將一個二維數組作爲參數。但不知何故運行該功能時不被調用。我無法弄清楚。任何建議

#include <stdio.h> 
#include <stdlib.h> 
signed char** complement(signed char no_of_variables[20][20]); 
int main(void) 
{ 

    FILE *ptr_file; 
    FILE *ptr_file1; 
    FILE *ptr_file2; 
    signed char **no_of_variables_or3; 
    //signed char **no_of_variables_or2; 

    signed char i, j, k, w; 
    signed char no_of_variables[20][20], no_of_variables2[23][1000]; 
    //char no_of_sops[1]; 
    //char a = no_of_sops[0]; 

    //char value[a][10]; 
    ptr_file = fopen("part1.txt", "r+"); 
    if (!ptr_file) 
    return 1; 
    for (i = 0; i < 2; i++) 
    { 
    fgets(no_of_variables[i], 20, ptr_file); 
    } 
    for (i = 0; i < no_of_variables[1][0]; i++) 
    { 
    fgets(no_of_variables[i + 2], 20, ptr_file); 
    } 

    fclose(ptr_file); 

    signed char var = 2 + (no_of_variables[1][0] - 48); 
    for (i = 0; i < (var); i++) 
    { 
    for (j = 0; j < 20; j++) 
    { 
     no_of_variables[i][j] = no_of_variables[i][j] - 48; 
    } 
    } 

    for (i = 0; i < 23; i++) 
    { 
    //for(j=0;j<1000;j++){ 
    // outputarray[i][j] = " "; 
    printf("val%d\n", no_of_variables[i][0]); 
    } 

    no_of_variables_or3 = complement(no_of_variables[20][20]); 

    FILE *optr_file; 
    optr_file = fopen("output_part1.txt", "r+"); 
    if (!optr_file) 
    return 1; 
    for (i = 0; i < 2; i++) 
    { 
    fputs(no_of_variables_or3[i], optr_file); 
    } 
    for (i = 0; i < no_of_variables_or3[1][0]; i++) 
    { 
    fputs(no_of_variables_or3[i + 2], optr_file); 

    } 
    fclose(optr_file); 
    return EXIT_SUCCESS; 
} 

Answer 1

改變這一行：

no_of_variables_or3 = complement(no_of_variables[20][20]); 

是：

no_of_variables_or3 = complement(no_of_variables); 

編譯器應該發出警告都指出你這個。