int len) { for (int i = 0; i < len; i++) { printf("%d ", data[i]); } printf("\n"); // here the return statement is missing, the compiler will generate an UB //hello(); } void example1() { int data[10]; for (int i = 0; i < 10; i++) { data[i] = i; ...
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...
gen::functionDefinitionEnd(); 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 number...
this solution still outputs the same error as well as 'Non-void function should return a value' error on lines 2 and 3. — Csonda 2 years ago Add a Comment What am I doing wrong? When you want to return a value from a closure, the closure must be declared as to return a valu...
return g_personal_name; #endif } int main() { int ret = 0; ret = get_company_name(); printf("ret value is:%d\r\n",ret); return 0; } 运行结果: g_personal_name value is:2 ret value is:2 从上面的程序来看:当没有走ifdef流程的时候,走的是另一个返回值的流程。如果没有写#else的...
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) {...
LeetCode错误:control reaches end of non-void function[werror=return-type]; 虽然有时我们在一块程序里已经有return,但不是在这块代码的结尾,leetCode也会编译不通过。所以我们也要在函数的代码块结尾也return一下。出现这种错误的时候,一般LeetCode还会在函数代码块的最后一行有红色的高亮提示。 (虽然我想到了要...
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 ...
"warning: control may reach end of non-void function [-Wreturn-type] runtime error: execution reached the end of a value-returning function without returning a value" At the two initial if's. However, when I compile on my IDE, there is no such warning. Any clues about ...
控制到达非void函数的结尾。 一些本应带有返回值的函内数到容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。 我是ostream声明的时候没有写return out;产生的错误。 参考:https://zhidao.baidu.com/question/1860183282073653227.html...