VS 2017 中的标头 cmath 智能感知错误

header cmath Intellisense errors in VS 2017

本文关键字：cmath 智能 感知 错误 2017 VS      更新时间：2023-10-16

标头 cmath 根本不起作用，当我在项目中打开 cmath 头文件时，VS 智能感知显示错误，例如 the global scope has no "acosf" ，并且有数百个。

我已经阅读了很多线程，但还没有弄清楚。我已经确认我正在根据一个线程使用 sdk 10.0.15063.0，但它不起作用。

包括 cmath 在内的任何项目都不起作用，因此它可能与特定代码无关。我已经尽力了，你们能告诉如何解决吗？提前感谢！

完整的错误列表如下：

Severity        Code    Description                     Project     File                                                                                                       Line Suppression State
Error (active)  E0282   the global scope has no "acosf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   25  
Error (active)  E0282   the global scope has no "acoshf"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   30  
Error (active)  E0282   the global scope has no "asinf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   35  
Error (active)  E0282   the global scope has no "asinhf"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   40  
Error (active)  E0282   the global scope has no "atanf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   45  
Error (active)  E0282   the global scope has no "atanhf"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   50  
Error (active)  E0282   the global scope has no "atan2f"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   55  
Error (active)  E0282   the global scope has no "cbrtf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   60  
Error (active)  E0282   the global scope has no "ceilf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   65  
Error (active)  E0282   the global scope has no "copysignf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   71  
Error (active)  E0282   the global scope has no "cosf"  Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   76  
Error (active)  E0282   the global scope has no "coshf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   81  
Error (active)  E0282   the global scope has no "erff"  Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   86  
Error (active)  E0282   the global scope has no "erfcf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   91  
Error (active)  E0282   the global scope has no "expf"  Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   96  
Error (active)  E0282   the global scope has no "exp2f" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   101 
Error (active)  E0282   the global scope has no "expm1f"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   106 
Error (active)  E0282   the global scope has no "fabsf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   111 
Error (active)  E0282   the global scope has no "fdimf" Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   116 
Error (active)  E0282   the global scope has no "floorf"    Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   121 
Error (active)  E0282   the global scope has no "fmaf"  Project7    c:Program Files (x86)Microsoft Visual Studio2017CommunityVCToolsMSVC14.12.25827includecmath   127 
//etc

///////////////////////////编辑：这是包含 cmath 的标头，来自 Strousrup 的 c++ PPP：

ifndef GRAPH_GUARD
#define GRAPH_GUARD 1
#include "Point.h"
#include <vector>
#include <string>
#include <cmath>
#include "fltk.h"
#include "std_lib_facilities.h"
namespace Graph_lib {
// defense against ill-behaved Linux macros:
#undef major
#undef minor
struct Color {
    enum Color_type {
        red=FL_RED, blue=FL_BLUE, green=FL_GREEN,
        yellow=FL_YELLOW, white=FL_WHITE, black=FL_BLACK,
        magenta=FL_MAGENTA, cyan=FL_CYAN, dark_red=FL_DARK_RED,
        dark_green=FL_DARK_GREEN, dark_yellow=FL_DARK_YELLOW, dark_blue=FL_DARK_BLUE
//etc

///////////////////////编辑：

using namespace std is included in "std_lib_facilities.h".

来自"std_lib_facilities.h"的斯皮内特：

#define _SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS 1
#ifndef H112
#define H112 201004L
#include<iostream>
#include<fstream>
#include<sstream>
#include<cmath>
#include<cstdlib>
#include<string>
#include<list>
#include<vector>
#include<algorithm>
#include<stdexcept>
//etc------------------

谢谢大家，我已经解决了问题。这是因为包含目录中不同math.h的冲突。

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