c++ - I want to input character and integers by scanf into a structure -

ok, i'd input one-letter character , 3 numbers structure using scanf, , want print 4 of them using function prints it. everytime run errors saying can't run it, or prints right except character part, go blank.. possibly wrong this??

#include <stdio.h>  struct score {     char a;     float x, y, z; };     void main(void) {  void avg(char *a, float x, float y, float z);       char a1 = 'b';     float x1 = 0, y1 = 0, z1 = 0;      printf("enter alphaber\n");     fflush(stdin);     scanf_s("%c", &a1);     printf("enter 3 numbers (ex:1,2,3)\n");     fflush(stdin);     scanf_s("%f,%f,%f", &x1, &y1, &z1);        struct score s1 = { a1, x1, y1, z1 };        avg(s1.a, s1.x, s1.y, s1.z);    } void avg(char *a, float x, float y, float z) {     printf("%c (%f,%f,%f) \n", a, x, y, z); } 

the signature of avg() wrong. first argument should not char* char.

because hate msvc-specific code, code should this. note should check whether readings successful.

#include <stdio.h>  struct score {     char a;     float x, y, z; };  int main(void) {      /* declareing function inside function unusual, not bad */     void avg(char a, float x, float y, float z);      char a1 = 'b';     float x1 = 0, y1 = 0, z1 = 0;      printf("enter alphaber\n");     if (scanf("%c", &a1) != 1) {         puts("read error");         return 1;     }     printf("enter 3 numbers (ex:1,2,3)\n");     if (scanf("%f,%f,%f", &x1, &y1, &z1) != 3) {         puts("read error");         return 1;     }      struct score s1 = { a1, x1, y1, z1 };      avg(s1.a, s1.x, s1.y, s1.z);  }  void avg(char a, float x, float y, float z) {     printf("%c (%f,%f,%f) \n", a, x, y, z); }