warning[pe174]: expression has no effect 这个警告信息意味着代码中存在一个表达式,但是这个表达式没有产生任何效果,也就是说,这个表达式被计算了,但其结果没有被使用,也没有对程序状态产生任何影响。 2. 常见原因分析 计算但未使用结果:比如计算了一个值但没有将其赋值给任何变量,也没有用作任何逻辑判断或...
j<<1;这句是无效的，因为没有保存运算的结果。改为：j = j << 1;另外，你还要看一下，在这段代码之前j的值是否已经是确定的。
Expression has no effectID: cpp/useless-expression Kind: problem Security severity: Severity: warning Precision: high Tags: - maintainability - correctness - external/cwe/cwe-561 Query suites: - cpp-security-and-quality.qls Click to see the query in the CodeQL repositoryThis rule finds ...
ccs编译出现warning:expression has no effect局部代码如下: void PieVectTableInit (void) void main(void) [ PieVectTableInit; ] 编译时出现warning:expression has no effect 求助ti人,谢谢。回帖(3)刘浩 2018-10-10 11:23:01 PieVectTableInit(); 举报 h1654155275.5842 2018-10-10 11:39:32引用...
JS1169: Expression has no effect An expression returns a value that is never used. To correct this error Remove the expression. Use the value of the expression as the argument for a function or operator. See Also Concepts
for( ; ; )是分号，不是逗号。
Compiler is generating a warning in .c when an API SetQuizBuckUFalt is called. The warning says expression has no side effect which means "statement does not change the program’s state", however the functionality is working fine for us but we need to understand why ...
aSPRINKLER TANK 喷水隆头坦克[translate] aThe operation has timed-out 操作计时了[translate] aUSERAPP\MAIN.C(387): warning C275: expression with possibly no effect USERAPP \ MAIN.C( 387) : 警告的C275 : 表示以可能没有作用[translate]
A nameof expression produces the name of a variable, type, or member as the string constant. A nameof expression is evaluated at compile time and has no effect at run time. When the operand is a type or a namespace, the produced name isn't fully qualified. The following example shows ...
TypeScript Version: 3.2.2 Code await this.setState({ someState: true }) Expected behavior: Since one can await setState, I expected no warning, this warning is actually incorrect. Actual behavior: