"non-void function does not return a value" 错误详解 1. 错误解释 “non-void function does not return a value”是一个编译时错误,意味着一个非void类型的函数在其执行路径上没有返回任何值。在大多数编程语言中,如果一个函数被声明为返回特定类型(非void),那么它必须在所有可能的执行路径上返回一个该类...
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...
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...
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) {...
Consequently, putting an empty return statement at the end of a void function is redundant: #include <iostream> // void means the function does not return a value to the caller void printHi() { std::cout << "Hi" << '\n'; return; // tell compiler to return to the caller -- ...
"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 ...
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before I can determine which cell is used and the code I have is in a void function and I'm now having trouble returning the cell. Here is my code. I'm getting this error "Unexpected non-void return value in void function" when I try to return CellOne and cellTwo in the code ...
Building ngs 0.2.16 I see this warning: malloc.c:71:1: warning: non-void function does not return a value in all control paths [-Wreturn-type] } ^ 1 warning generated.