272: warning: comparison is always false due to limited range of data type

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C++ warning: comparison is always false due to limited range of data type [-Wtype-limits]

这是关于此警告消息的小而清晰的帖子,起初看起来很奇怪。但是仔细观察,其背后的原因非常清楚而直接。涉及到代码移植性。 警告:由于数据类型范围有限,比较... // location is unsigned if( location == std::st

writer.h:430:67: error: comparison is always true due to limited range of data type [-Werror=type-...

/./include/cereal/external/rapidjson/writer.h:430:67: error: comparison is always true due to limited range of data type [-Werror=type-limits] 430 | else if ((sizeof(Ch) == 1 || static_...

ARM: comparison is always true due to limited range of data type

<div><p>11e1f8bd40e32080ce4df491178323f30e...overmap.cpp:1187: warning: comparison is always false due to limited range of data type</p><p>该提问来源于开源项目:CleverRaven/Cataclysm-DDA</p></div>

GCC(ARM) warning: comparison is always true due to limited range of data type

char ch; while((ch = getopt(argc,argv,"d:h"))!=EOF switch(ch{ case 'h' ... GCC X86 OK! GCC Arm 警告如下 ...warning: comparison is always true due to limited range of data type 改为int c

Supress "warning: comparison is always true due to limited range of data type

warning: comparison is always true due to limited range of data type" in mruby.h <p>I'm not sure the strict C language specification. But enum is converted to signed int in case there are at ...

Compiler warning: "Comparison is always false

tinyxml2\tinyxml2.cpp|1936|warning: comparison is always false due to limited range of data type [-Wtype-limits]| <p>The line in question contains this if-clause: if ( (unsigned long)filelength >&#...

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warning: comparison is always true

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消灭编译警告(Warning)

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"warning: comparing floating point with == or != is unsafe" (-Wfloat-equal)

tests.c:164: warning: comparison is always false due to limited range of data type tests.c:168: warning: comparison is always false due to limited range of data type tests.c: In function ‘test_minmea...

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Building on Mac OS X 10.6.8 -> cc1 error

encoder.c:2053: warning: comparison is always false due to limited range of data type encoder.c:2053: warning: comparison is always false due to limited range of data type encoder.c:2053: warning: ...

Problems with unsigned char on PowerPC

n is always true due to limited range of data type /home/pascal/src/oiio/src/cineon.imageio/cineoninput.cpp:314: warning: compariso n is always true due to limited range of data type /home/pascal/src/...

Compiling on Mac OS X 10.6.x - Snow Leopard fails

encoder.c:1448: warning: comparison is always false due to limited range of data type encoder.c:1448: warning: comparison is always false due to limited range of data type encoder.c:1448: warning: ...

Catacharset.cpp conditional error messages

wcwidth.c:202:15: warning: comparison is always false due to limited range of data type [-Wtype-limits] wcwidth.c:202:33: warning: comparison is always true due to limited range of data type [-Wtype-...

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several compile warnings when crosscompiling for ARM

comparison is always true due to limited range of data type <p>cclassdescriptor.cc: In static member function `static long int cClassDescriptor::string2enum(const char, const char)': ...

16种C语言编译警告(Warning)类型的解决方法

当编译程序发现程序中某个地方有疑问,可能有问题时就会给出一个警告信息。警告信息可能意味着程序中隐含的大错误,也可能确实没有问题。对于警告的正确处理方式应该是:尽可能地消除之。对于编译程序给出的每个警告...

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Cast pins to signed integers to avoid Wtype-limits compile warning

/home/travis/.arduino15/packages/arduino/hardware/avr/1.6.23/variants/standard/pins_arduino.h:74:39: warning: comparison is always true due to limited range of data type [-Wtype-limits] #define ...

Compilation warnings : might be important.

<p>Arduino\libraries\NMEA2000-master\ActisenseReader.cpp:71:18: warning: comparison is always false due to limited range of data type [-Wtype-limits] <pre><code> if (MsgBuf[12]>tN2kMsg::MaxDataLen)...

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<p><code>/home/a/Desktop/welle.io/../welle.io/src/backend/viterbi.cpp:234: warning: comparison is always false due to limited range of data type [-Wtype-limits] if (temp < 0) temp = 0; ^...

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/Users/maxfieldmorrison/NSR/solsense32/Firmware/solsense_esp32/main/./DallasTemperature.cpp:611:22: warning: comparison is always false due to limited range of data type [-Wtype-limits] else if ...

gcc 3 warnings & errors

yescrypt/yescrypt-opt.c:1192: warning: comparison is always false due to limited range of data type sha2.c:706:7: warning: no newline at end of file stribog_fmt_plug.c:472:2: warning: #warning Stribog...

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