Exception(fmt::format(fmt, std::forward<Args>(args)...), code)error: ‘fmt’ is not a constant expression 40 | : Exception(fmt::format(fmt, std::forward<Args>(args)...), code) | ~~~^~~~ 简而言之就是format的str用fmt::runtime包装一下,让编译器不要把这个变量当做编译时常量。 fm...
Qt开发,从一个C#项目中搬过来一段代码,看上去很简单的逻辑,不过报错了: case value is not a constant expression 也就是switch case后面不支持变量,怎么解决呢?用常量当然可以,不过代码就变得不太友好了。 网上看到一条建议,很简单,不用switch case了,改用if else代替: if(unit==DT::UNIT_DEG){ if(gd>9...
Pointer non type template parameter compiles in msvc but not in gcc and clang 26 constexpr and initialization of a static const void pointer with reinterpret cast, which compiler is right? 23 Why is reinterpret_cast not constexpr? 7 How to create a constexpr pointer to...
tmp1.cpp: In function ΓÇÿintmain(int,char**)ΓÇÖ: tmp1.cpp:17:117: error: modification of ΓÇÿ<temporary>ΓÇÖ is not a constant expression17| static constexpr std::initializer_list<std::pair<int, std::initializer_list<int> > > s={{0, {1}}, {1, {2}}, ...
Fixes error: expression is not a constant expression 817b3cc Copy link Contributor artwymancommentedJan 5, 2018 Before merging this I'd like to hear commentary from@choiipwho originally created this code in PR#323. Sorry, something went wrong. ...
import 'package:flutter/material.dart'; import 'package:flutter_basics_mu_01/plugin_use.dart'; // void main() { // // runApp(const MyApp()); // runApp(PluginUse) // } void main() => runApp(PluginUse()); class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(...
如果打开注释的那一块代码会报一个错误提醒Expression is not an integer constant expression GlogConfig.h中声明的pram(extern NSInteger const pram;)对外是一个全局不可变的一个变量. 我们在GlogConfig.m中对pram进行了初始值进行定义(const NSInteger pram = 0x11;),这里parm是一个局部常量不可变的. ...
The following code: switch((int) getType()) { case (int) A_TYPE: // ... case ((int) B_TYPE): // ... } does not work. I get the error: case value is not a constant expression. Sourcetrail does not understand the C-cast in the case stateme...
MSVC 2019 / VC++ 19.29 Bug: call to immediate function is not a constant expression (C++20) Closed - Not a Bug11 0Votes BBBenjamin Buch -Reported Oct 20, 2023 6:44 PM [severity:I’m unable to use this version] Minimal reproducible example: ...
<source>:6:18: error: non-type template argument is not a constant expression 6 | std::array<int, static_cast<std::size_t>(floating_constant)> a; | ^~~~ <source>:6:43: note: read of non-constexpr variable 'floating_constant' is not allowed in a constant express...