ex1.c:17:1: warning: non-void function does not return a value [-Wreturn-type] } ^ 1.2 开启-Wall或/Wall就可以了吗? 对于GCC/Clang, 提供了-Wall编译选项。 对于 MSVC, 提供了/Wall编译选项。 -Wall确实可以让 “非void函数缺失返回值语句” 从“默默无声”变为“报告为警告”。 不过, 还是需要...
Here is my code: why does it show compile error??: **non void function does not return a value in all control paths: ** vector<int> twoSum(vector<int>& nums, int target) { unordered_map<int,int> m; vector<int> v; for(int i=0;i<nums.size();i++){ if...
用clang++编译同样类似警告也通过了,但执行出现异常指令。 gaojie@root-host:~$ clang++bool.cppbool.cpp:12:1: warning: non-voidfunction does notreturna value [-Wreturn-type] };^1warning generated. gaojie@root-host:~$ ./a.outyes 非法指令 (核心已转储) 本着好奇的心理,就想知其原因为啥会有不...
Non void function does not return any value I'm trying to solve the basic twosum problem on leetcode using brute force i.e. two nested for loops. We are given an array and we have to find a single pair of two numbers whose sum is a specific given value. I've checked the code ...
if (!gen::functionDefinitionEnd()) { error::out() << fnName.loc << ": warning: non-void function does not " << "return a value in all control paths\n"; } } /*21 changes: 19 additions & 2 deletions 21 gen/function.cpp Original file line numberDiff line numberDiff line change...
The following sample code long offset(long v) { if (!v) return 0; if (v > 0) return 1; if (v < 0) return -1; } produces warning: non-void function does not return a value in all control paths [-Wreturn-type] So does long offset(long v) {...
一个函数被编译的时候,编译器不仅仅看if条件内的return语句,编译器还看if条件外的return语句,如果if语句外没有return,编译器就会报错。---这个是编译器语法检测哪一章的知识 #include <stdio.h> //#define COMPANY_NAME 3 int g_company_name = 1; int ...
warning: control reaches end of non-void function 它的意思是：控制到达非void函数的结尾。就是说你的一些本应带有返回值的函数到达结尾后可能并没有返回任何值。这时候，最好检查一下是否每个控制流都会有返回值。你没有在else语句内return ...
output = {d[m], i};returnoutput; }else{ d[nums[i]] = i; } } } }; I get the error: Line16: Char5: error: non-voidfunction doesnotreturna value in all control paths [-Werror,-Wreturn-type] } ^1error generated. It points on the line before last one....