我不明白为什么我在尝试编译时总是出现错误。我说错了
分数.c:在函数“主”中:
分数.c:35:24:警告:赋值从指针转换为整数而没有强制转换[默认启用]分数.c:38:24:警告:赋值从指针转换为整数而没有强制转换强制转换[默认启用] Fractions.c:41:24:警告:赋值从指针转换为整数而没有强制转换[默认启用] fraction.c:44:24:警告:赋值从指针转换为整数而没有强制转换[由...启用默认值] fractions.c:48:11:警告:未使用的变量“ fArray” [-Wunused-variable]”
#include <stdio.h>
#include <stdlib.h>
typedef struct{
int numerator;
int denomonator;
char operator;
int num2;
int den2;
} fraction;
void printFraction(fraction f);
int main(){
fraction myFraction;
char input;
printf("Enter the numerator of fraction 1: ");
scanf("%i", &myFraction.numerator);
printf("Enter the demoninator of fraction 1: ");
scanf("%i", &myFraction.denomonator);
printf("Enter the numerator of fraction 2: ");
scanf("%i", &myFraction.num2);
printf("Enter the demoninator of fraction 2: ");
scanf("%i", &myFraction.den2);
printf("\n\nEnter the operation you would like to perform\n");
printf("(1) for addition\n(2) for subtraction\n(3) for multiplication)");
printf("\n(4) for division\n");
scanf("%c", &input);
switch(input){
case '1':
myFraction.operator = "+";
break;
case '2':
myFraction.operator = "-";
break;
case '3':
myFraction.operator = "*";
break;
case '4':
myFraction.operator = "/";
break;
}
fraction fArray[] = {myFraction};
printFraction(myFraction);
return 0;
}
void printFraction(fraction f){
printf("%i/%i %c %i/%i\n", f.numerator, f.denomonator, f.operator, f.num2, f.den2);
}
这是字符串文字(ISO C99 6.4.5):
"+"
您需要一个字符常量(ISO C99 6.4.4.4):
'+'
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我来说两句