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Noté. / 5. Basé sur avis des utilisateurs
static bool IsInf(double x)
Purpose Test if valu e is infinite and return true if value is infinite
C++
Syntax
#include "mclcppclass. h"
bool x = mwArray::IsInf(1. 0); // Returns false
Arguments Value to test for infinity
Return
Value
Result of test.
Description Call mwArray::IsInf to determine whether or not a value is equal to
infinity or minus infinity. MATLAB stores the value of infinity in a
permanent variable named
Inf, w hich represents IEEE arithmetic
positive infinity. The value of the variable,
Inf, is built into the system;
you cannot modify it.
Operation s that return infinity include
• Division by 0. For example, 5/0 returns infinity.
• Operations resulting in overflow. For example,
exp(10000) returns
infinity because the result is too large to be represented on your
machine. If the value equals
NaN ( Not-a-Number), then mxIsInf
returns false .Inotherwords,Na N is not equal to infinity.
C-93
- Compiler 4 1
- User’s Guide 1
- 508-647-7000 (Phone) 2
- 508-647-7001 (Fax) 2
- The MathWorks, Inc 2
- 3 Apple Hill Drive 2
- Natick, MA 01760-2098 2
- Revision History 3
- Troubleshooting 10
- Functions — By Category 11
- Reference Information 11
- C++ Utility Library Reference 13
- Contents 14
- Getting Started 15
- What Is MATLAB Compiler? 16
- Wrapper Files 17
- 1 Getting Star ted 18
- Before You Begin 19
- Component 20
- Magic Square Example 21
- .zip file 23
- Using the mcc Command 24
- For M ore Information 29
- Installation and 31
- Configuration 31
- Requirements 32
- Installation 34
- VC98 directory from 36
- Options Files 42
- Changing the Options File 43
- Compilation Process 45
- 3 Compilation Process 46
- Build Process 47
- Wrapper Code Generation 49
- Archive Creation 49
- C/C++ Compilation 49
- Input and Output Files 50
- CSharedLibrary 51
- C++ Shared Libra 53
- Deployment Process 55
- Over view 56
- Deploying to P rogrammers 57
- 4 Deployment Process 58
- C or C++ Shared Library 59
- Java Component 61
- Deploying to End Users 63
- MCRInstaller.zip 65
- .NET Application 67
- Microsoft Excel Add-In 69
- Working with the MCR 74
- Modifying the Path 75
- Developm en t Env iron ment 79
- Ser vices 80
- Compiler Commands 81
- Command Overview 82
- Using File Extensions 83
- Macro Options 85
- Understanding a Macro Option 85
- Using Pathnames 87
- Using Bundle Files 88
- <type> 90
- C Library Wrapper 91
- Overview 93
- CExample 93
- Using Pragmas 97
- 5 Compiler Commands 100
- Script Files 101
- Compiler Tips 102
- Application 107
- Standalone Applications 109
- Introduction 110
- Compiling the Application 111
- Testing the 111
- 6 Standalone Applications 112
- Linux x86-64 113
- Mac OS X 113
- Intel Mac (Maci) 113
- Running the Application 115
- Coding with M-Files Only 119
- Mixing M-Files and C or C++ 121
- Explanation of mrankp.c 125
- Explanation of This C Code 129
- Libraries 131
- C Shared Library Target 134
- 7 Libraries 136
- Based Shared Libraries 139
- Calling a Shared Library 141
- C++SharedLibraryTarget 147
- C++ Shared Lib rary Target 149
- Exported Function Signature 151
- Type of Application 153
- 8 Troubleshooting 170
- MATLAB Compiler 172
- Deployed Applications 176
- 9 Reference Information 182
- Solaris64 183
- Unsupported Functions 188
- MATLAB Compiler Licensing 191
- Running MCRInstaller.exe 193
- The followi ng co mmand: 195
- Command-Lin 198
- Functions — Alphabetical 199
- %#external 200
- Syntax %#external 200
- %#function 201
- Syntax builder2prj 203
- Examples Example 1 203
- Syntax ctfroot 205
- Syntax deployprint 206
- See Also isdeployed, print 207
- Syntax deploytool 208
- Syntax x = isdeployed 209
- Options -a Add to Archive 215
- -B Specify Bundle File 217
- -c Generate C Code Only 217
- -f Specified Options File 218
- -F Specified Project File 218
- -G Debug Only 219
- -M Direct Pass Through 220
- -N Clear Path 220
- -o Specify Output Name 221
- -p Add Directory to Path 221
- -R Run-Time 222
- -S Create Singleton MCR 222
- -T Specify Target Stage 222
- -v Verbose 223
- -w Warning Messages 223
- -W Wrapper Function 224
- -Y License File 225
- -z Specify Path 225
- -? Help Message 226
- Limitations and 229
- Restrictions 229
- Limitations and Restriction s 230
- MATLAB Code 231
- Workaround 232
- Suppressing Warnings on UNIX 233
- Older Neural Net 235
- MATLAB Compiler Quick 237
- Reference 237
- Create a Library 238
- Example 2 239
- Messages 243
- Error and Warning 243
- B Error and Warning Messages 244
- Compile-Time Errors 245
- Warning M essages 249
- Warning Messages 251
- C++ Utility Library 255
- Primitive Types 256
- Utility Classes 257
- About mwString 258
- Constructors 258
- Operators 258
- Construct empty string 260
- String to make a copy of 265
- String to compare 267
- The result of the comparison 267
- String to copy 273
- The input os tream 273
- About mwException 274
- Error message 277
- About mwArray 283
- Static Methods 285
- Number of elements in array 305
- NumberOfElements() 306
- is returned 323
- Value to assign 340
- -Inf an d les s than Inf 346
- -z option flag 11-27 354
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