warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-wunused-result] 1. 理解警告信息的含义 这个警告信息表示编译器检测到你忽略了scanf函数的返回值。scanf函数在C/C++中用于从标准输入读取
PAT之warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] 做题的时候突然出现的,之前用的时候没有出现,遇到感觉有点懵 原因:忽略了scanf();的返回值 查了一下解决方法: 1、强制忽略scanf的返回值 (void)scanf(); 2:加判断...
今天,我在PTA里面刷题的时候,碰到了这样的情况 warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result 其实,当时,我写了这样的代码 #include<stdio.h> intmain(){ intN; scanf("%d", &N); N++; inta[10][10] = {0}; a[0][0] =1, a[1][0] =1, a[1...
if (ret <=0) return -1;或者 (void)scanf(...
但是又的时候如果没有配置好的话,如果想要返回Map的json对象会报:No converter found for return value of type: class java.uti... kaizi1992 0 850 关于c语言中scanf的输入的问题 2019-12-11 17:54 −下面有一个代码为例,要求输入姓名跟居住地 #include <stdio.h> #include <windows.h> #define MAX...
/*...*/ int max_length = 500; char *usr *pwd; usr = calloc(sizeof(char) * max_length, sizeof(char)); pwd = calloc(sizeof(char) * max_length, sizeof(char)); scanf("%s %s", usr, pwd); getchar(); /*这是为了给个输入终止*/ realloc(usr, sizeof(char) * strlen(usr));...
int score; int local_rank; int local_number; }stu[30010]; bool cmp(student a,student b) { if (a.score!=b.score) return a.score>b.score; else return strcmp(a.id,b.id)<0; } int main() { int n,k,num=0; scanf("%d",&n);//考场数 ...
I would like to get rid of the linker warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:LBR' specification.My VS solution has two projects, a C++/CLI executable and a static C++ library.The IDE is Visual Studio Express 2013 for Windows Desktop....
文章目录 示例代码 gcc 编译,按照C的标准 g++, 按照C++ -fpermissive 示例代码 gcc 编译,按照C的标准 提示警告;不是错误;在需要void返回类型时,却给了个int类型的返回值。 return.c: In function ‘fun’: return.c:5:9: warning: ‘return’ with a val...android...