#报错信息如下//test.cpp: In function 'int main()'://test.cpp: error: jump to case label [-fpermissive]// case 2:// ^//test.cpp: error: crosses initialization of 'int i'// int b = 1;//test.cpp: error: jump to case label [-fpermissive]// default:// ^//test.cpp:11:8: ...
While using the switch statement, in C++ a common error that may be observed is ‘Jump to Case Label Crosses Initialization’. This error usually appears due to the incorrect declaration of a variable within the case label. Here is an example program to demonstrate the ‘Jump to Case Label ...
下面的类似的源码在MSVC上能正确编译通过。但是gcc/g++上就会错: 1. if(expr) 2. goto error; 3. size_t var = 0; 4.error: 5 error_handle(); 4:1: error: jump to label ‘error’ [-fpermissive] 2:35: error: from here [-fpermissive] 3:9: error: crosses initialization of ‘size_t ...
error: jump to label ‘end’ error: from here error: crosses initialization of ‘int x’ error: crosses initialization of ‘int y’ 网上找了半天也没有看到有人明确把问题说清除,后面仔细看了一下错误提示,Oh,原来是g++下的goto语句,在跳转之后还有变量声明的话,它认为后面定义的变量在跳转label定义时尚...
testswitch.cpp:10: error: jump to case label testswitch.cpp:8: error: crosses initialization of ‘int b’ 出现这样的提示,你很有可能在某个case标记中定义了局部变量,而后面还有其他的case标记或者default语句。。比如说这里的整形变量b。 看看编译器提示的信息 cross initialization of int b, 什么意思呢...
case_init.cpp:9: error: jump to case label case_init.cpp:7: error: crosses initialization of `int a' 首先在这里作者提到问题出在本地(local)变量或者叫做自动变量的作用域范围,点的很好。本地变量的作用域仅在花括号之间。于是方案1: 代码: ...
2. goto error; 3. size_t var = 0; 4.error: 5 error_handle(); 4:1: error: jump to label ‘error’ [-fpermissive] 2:35: error: from here [-fpermissive] 3:9: error: crosses initialization of ‘size_t var’ 解决以上问题就是要么所有变量初始化都放在函数开头,要么所有变量就不让它初...
jump to case label [-fpermissive] case VAR_SWITCH: ^ adaptation.ii:15:13: error: crosses initialization of ‘int trunc_n_ants’ int trunc_n_ants = 0; ^ adaptation.ii:20:7: warning: jump to case label [-fpermissive] default: break; ^ adaptation.ii:15:13: error: crosses initialization...
Error Jump to case label - The problem is that variables declared in one case are still visible in the subsequent cases unless an explicit { } block is used, but they will not be initialized because the initialization code belongs to another case.
intmain(){if(0){gotoend;}inti=1;end:cout<<i;}#报错信息如下://test.cpp: In function 'int main()'://test.cpp error: jump to label 'end' [-fpermissive]// end:// ^//test.cpp error: from here [-fpermissive]// goto end;// ^//test.cpp: error: crosses initialization of 'int...