内联函数声明但未定义 “warning: inline function `*` declared but never defined”

最新推荐文章于 2022-11-30 14:17:05 发布
最新推荐文章于 2022-11-30 14:17:05 发布
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分类专栏： Linux 文章标签： makefile linux
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本文链接：https://blog.youkuaiyun.com/superbfly/article/details/52290606
本文介绍了一种解决编译过程中出现的内联函数声明但未定义警告的方法：通过添加-fgnu89-inline标志来启用传统GNU内联函数语义。

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Adding the -fgnu89-inline flag fixes the warnings, by enabling "traditional GNU semantics for inline functions when in C99 mode".

编译程序的时候总报 “内联函数声明但未定义” 的警告。

解决方法就是在编译时加上-fgnu89-inline

再次编译就没有问题了。


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C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:8:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:15:3: error: 'hlscl' was not declared in this scope hlscl.WritePosEx(0xfe, 4095, 60, 50, 500); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino:7:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino:12:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino:18:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino:20:13: error: 'slscl' was not declared in this scope int pos = slscl.ReadPos(1); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\CalibrationOfs.ino:21:7: error: 'hlscl' was not declared in this scope if(!hlscl.getLastError()){ ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:10:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:13:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:20:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:24:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:33:3: error: 'hlscl' was not declared in this scope hlscl.FeedBack(1); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:7:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:9:5: error: redefinition of 'int LEDpin' int LEDpin = 13; ^~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:11:5: note: 'int LEDpin' previously defined here int LEDpin = 13; ^~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:10:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:17:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:21:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Ping.ino:23:12: error: 'hlscl' was not declared in this scope int ID = hlscl.Ping(1); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:7:5: error: redefinition of 'int LEDpin' int LEDpin = 13; ^~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\FeedBack.ino:11:5: note: 'int LEDpin' previously defined here int LEDpin = 13; ^~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:8:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:10:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:15:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:19:22: error: 'HLSCL_ID' was not declared in this scope hlscl.writeByte(1, HLSCL_ID, 2);//ID ^~~~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:19:22: note: suggested alternative: 'SCSCL_ID' hlscl.writeByte(1, HLSCL_ID, 2);//ID ^~~~~~~~ SCSCL_ID C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\ProgramEprom.ino:24:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino:3:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino:5:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino:9:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino:13:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\RegWritePos.ino:16:3: error: 'hlscl' was not declared in this scope hlscl.RegWritePosEx(1, 4095, 60, 50, 500); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:7:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:14:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:19:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:24:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:26:3: error: 'hlscl' was not declared in this scope hlscl.syncReadPacketTx(ID, sizeof(ID), HLSCL_PRESENT_POSITION_L, sizeof(rxPacket));//同步读指令包发送 ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:26:42: error: 'HLSCL_PRESENT_POSITION_L' was not declared in this scope hlscl.syncReadPacketTx(ID, sizeof(ID), HLSCL_PRESENT_POSITION_L, sizeof(rxPacket));//同步读指令包发送 ^~~~~~~~~~~~~~~~~~~~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:26:42: note: suggested alternative: 'SCSCL_PRESENT_POSITION_L' hlscl.syncReadPacketTx(ID, sizeof(ID), HLSCL_PRESENT_POSITION_L, sizeof(rxPacket));//同步读指令包发送 ^~~~~~~~~~~~~~~~~~~~~~~~ SCSCL_PRESENT_POSITION_L C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:2:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:4:10: error: redefinition of 'byte ID [2]' byte ID[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:9:9: note: 'uint8_t ID [2]' previously defined here uint8_t ID[] = {1, 2}; ^~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:5:15: error: conflicting declaration 's16 Position [2]' s16 Position[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:11:9: note: previous declaration as 'int16_t Position' int16_t Position; ^~~~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:6:12: error: conflicting declaration 'u16 Speed [2]' u16 Speed[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:12:9: note: previous declaration as 'int16_t Speed' int16_t Speed; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:10:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:14:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:18:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[0] = 60;//最高速度V=60*0.732=43.92rpm ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:19:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[1] = 60;//最高速度V=60*0.732=43.92rpm ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:26:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:29:13: error: invalid types 'int16_t {aka int}[int]' for array subscript Position[0] = 4095; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:30:13: error: invalid types 'int16_t {aka int}[int]' for array subscript Position[1] = 4095; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:31:3: error: 'hlscl' was not declared in this scope hlscl.SyncWritePosEx(ID, 2, Position, Speed, ACC, Torque); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:35:13: error: invalid types 'int16_t {aka int}[int]' for array subscript Position[0] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:36:13: error: invalid types 'int16_t {aka int}[int]' for array subscript Position[1] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:2:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:4:10: error: redefinition of 'byte ID [2]' byte ID[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:9:9: note: 'uint8_t ID [2]' previously defined here uint8_t ID[] = {1, 2}; ^~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:5:12: error: conflicting declaration 's16 Speed [2]' s16 Speed[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncRead.ino:12:9: note: previous declaration as 'int16_t Speed' int16_t Speed; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:6:11: error: redefinition of 'byte ACC [2]' byte ACC[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:7:6: note: 'byte ACC [2]' previously declared here byte ACC[2]; ^~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:7:13: error: redefinition of 'u16 Torque [2]' u16 Torque[2]; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWritePos.ino:8:5: note: 'u16 Torque [2]' previously declared here u16 Torque[2]; ^~~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:9:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:13:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:25:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:28:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[0] = 60; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:29:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[1] = 60; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:30:3: error: 'hlscl' was not declared in this scope hlscl.SyncWriteSpe(ID, 2, Speed, ACC, Torque); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:34:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[0] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:35:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[1] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:40:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[0] = -60; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:41:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[1] = -60; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:46:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[0] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\SyncWriteSpe.ino:47:10: error: invalid types 'int16_t {aka int}[int]' for array subscript Speed[1] = 0; ^ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino:3:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino:5:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino:9:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino:14:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteEle.ino:17:3: error: 'hlscl' was not declared in this scope hlscl.WriteEle(1, 300); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino:3:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino:5:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino:9:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino:13:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WritePos.ino:16:3: error: 'hlscl' was not declared in this scope hlscl.WritePosEx(1, 4095, 60, 50, 500); ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino: At global scope: C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino:3:1: error: 'HLSCL' does not name a type; did you mean 'SCSCL'? HLSCL hlscl; ^~~~~ SCSCL C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino: In function 'void setup()': C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino:5:6: error: redefinition of 'void setup()' void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:4:6: note: 'void setup()' previously defined here void setup() ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino:9:3: error: 'hlscl' was not declared in this scope hlscl.pSerial = &Serial1; ^~~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino: In function 'void loop()': C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino:14:6: error: redefinition of 'void loop()' void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\Broadcast.ino:12:6: note: 'void loop()' previously defined here void loop() ^~~~ C:\Users\80967\Desktop\HLSCL\Broadcast\WriteSpe.ino:17:3: error: 'hlscl' was not declared in this scope hlscl.WriteSpe(1, 60, 50, 500); ^~~~~ exit status 1 Compilation error: 'hlscl' was not declared in this scope
最新发布
08-09
- **函数定义**：在头文件中使用 `inline` 函数（小型函数） ```cpp inline int calc(int a) { return a*2; } // 可放在头文件 ``` > **关键原则**：声明（头文件）≠ 定义（源文件）。通过 `extern` 声明全局...
../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1132): warning: #47-D: incompatible redefinition of macro "__PKHBT" (declared at line 852 of "../Drivers/CMSIS/Include/cmsis_armcc.h") #define __PKHBT(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0x0000FFFF) | \ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1134): warning: #47-D: incompatible redefinition of macro "__PKHTB" (declared at line 855 of "../Drivers/CMSIS/Include/cmsis_armcc.h") #define __PKHTB(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0xFFFF0000) | \ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1735): error: #79: expected a type specifier __STATIC_FORCEINLINE int32_t __SMMLA( ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1735): error: #101: "int32_t" has already been declared in the current scope __STATIC_FORCEINLINE int32_t __SMMLA( ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1735): error: #141-D: unnamed prototyped parameters not allowed when body is present __STATIC_FORCEINLINE int32_t __SMMLA( ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1740): error: #20: identifier "sum" is undefined return (sum + (int32_t) (((int64_t) x * y) >> 32)); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1740): error: #20: identifier "x" is undefined return (sum + (int32_t) (((int64_t) x * y) >> 32)); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(1740): error: #20: identifier "y" is undefined return (sum + (int32_t) (((int64_t) x * y) >> 32)); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(2680): error: #757: function "int32_t" is not a type name int32_t shift, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(2695): error: #757: function "int32_t" is not a type name int32_t shift, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(2793): error: #757: function "int32_t" is not a type name int32_t resetStateFlag); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(2811): error: #757: function "int32_t" is not a type name int32_t resetStateFlag); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(2830): error: #757: function "int32_t" is not a type name int32_t resetStateFlag); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5532): error: #757: function "int32_t" is not a type name int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5545): error: #757: function "int32_t" is not a type name int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5558): error: #757: function "int32_t" is not a type name int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5571): error: #757: function "int32_t" is not a type name int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5606): error: #757: function "int32_t" is not a type name int32_t * pTapDelay, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5642): error: #757: function "int32_t" is not a type name int32_t * pTapDelay, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5680): error: #757: function "int32_t" is not a type name int32_t * pTapDelay, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(5718): error: #757: function "int32_t" is not a type name int32_t * pTapDelay, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6491): warning: #174-D: expression has no effect int32_t i; /* Index variable */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6491): error: #65: expected a ";" int32_t i; /* Index variable */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6495): error: #20: identifier "i" is undefined i = (int32_t) ((x - S->x1) / xSpacing); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6548): warning: #174-D: expression has no effect int32_t index; /* Index to read nearest output values */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6548): error: #65: expected a ";" int32_t index; /* Index to read nearest output values */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6553): error: #20: identifier "index" is undefined index = ((x & (q31_t)0xFFF00000) >> 20); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6606): warning: #174-D: expression has no effect int32_t index; /* Index to read nearest output values */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6606): error: #65: expected a ";" int32_t index; /* Index to read nearest output values */ ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6611): error: #20: identifier "index" is undefined index = ((x & (int32_t)0xFFF00000) >> 20); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6611): error: #31: expression must have integral type index = ((x & (int32_t)0xFFF00000) >> 20); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6611): error: #18: expected a ")" index = ((x & (int32_t)0xFFF00000) >> 20); ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6911): error: #757: function "int32_t" is not a type name int32_t * circBuffer, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6912): error: #757: function "int32_t" is not a type name int32_t L, ../Middlewares/ST/ARM/DSP/Inc/arm_math.h(6914): error: #757: function "int32_t" is not a type name int32_t bufferInc, ..\User\modules\master_process.c: 5 warnings, 30 errors
06-07
2. **编译器宏冲突**：如 `__CC_ARM`、`__GNUC__` 等编译器标识宏在不同文件中被重复声明。 3. **包含路径顺序错误**：CMSIS头文件与DSP库的引用顺序不当。 --- ### **解决步骤** #### **1. 清理全局宏定义 (关键...
gcc 内联函数编译报错
chenxizhan1995的博客
11-04 1012
问题描述 一段很简单的代码，使用了内联函数，编译竟然报错。惊呆了，记下来防止遗忘。 #include <stdio.h> #include <stdbool.h> inline int sum(int a, int b){ return a+b; } int main(int argc, char * argv[]){ int a,b; a=3;b...
c++实战——undefined reference xxxx，内联函数，extern陷阱（附录：g++与gcc）
GZ的博客
01-22 2366
一、undefined reference xxxx 原因： 1.1 使用者自己定义的函数或者全局变量所在源代码文件，没有被编译、连接，或者干脆还没有定义，这 需要使用者根据实际情况修改源程序，给出全局变量或者函数的定义体；若全局 namespace xxx 被class xxx 覆盖，请加上::  ； 1.2 是未定义的符号是一个标准的库函数，在源程序中使用了该库函数，而连接过程中还没...
内联函数的声明和定义
sead+
07-26 2万+
一、什么叫inline函数？ inline（小心，不是online），翻译成“内联”或“内嵌”。意指：当编译器发现某段代码在调用一个内联函数时，它不是去调用该函数，而是将该函数的代码，整段插入到当前位置。这样做的好处是省去了调用的过程，加快程序运行速度。（函数的调用过程，由于有前面所说的参数入栈等操作，所以总要多占用一些时间）。这样做的不好处：由于每当代码调用到内联函数，就需要在调用处直接插入
函数设置为内联inline之后编译报错LINK ERROR 2019相关
只为龙舞的博客
11-06 3550
   在改代码的时候，将一些函数设置为内联函数在debug版本下没问题，但是编译成release时报错，具体错误表现如图： 我查了一下，原因是内联函数声明与定义分开时，不可以被其他文件引用。就是说，在类A中，有一个内联函数a()，如果我们在A.h中对其声明并定义，那么并没有影响；但如果我们在A.h中对其声明，然后在A.cpp中对其定义，那么不能在其他的类中再使用它。   借此直接整理一下内联...
【C++】内联函数(inline)和宏定义(# define)的优劣及其区别
Y先森0.0
09-29 1106
一.宏定义:# define 1.为什么要使用宏？因为调用宏比调用函数更有效率，函数的调用必须要将程序的执行顺序转移到函数所存放的内存地址中，将函数程序内容执行完后，再返回到执行该函数前的地方，这种转移操作要求执行前要保存现场并记忆执行地址，转回后要恢复现场，并按原来保存的地址继续执行，因此，函数调用有一定的时间和空间的开销，而宏只是在预处理的地方把代码展开，不需要额外的时间和空间开销，...
内联函数inline分文件编译报错的原因
精致的灰的博客
11-26 3846
内联函数是不能分文件编译的。 如果使用函数内联，则必须在包括的头文件中实现内联函数。 如果非要分文件编译，比如函数声明为内联： //Add.h inline int Add(int a,int b); //Add.cpp #include"Add.h" int Add(int a,int b) { return a+b; } //main.cpp #include <iostream> #include"Add.h" using namespace std; int main() {
内联函数
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renwu
08-03 6万+
1.什么是内联函数 用关键字inline修饰的函数就是内联函数。关键字在函数声明和定义的时候都要加上，不写系统还是会当成常规函数   2.内联函数与一般函数的区别 1）内联含函数比一般函数在前面多一个inline修饰符 2）内联函数是直接复制“镶嵌”到主函数中去的，就是将内联函数的代码直接放在内联函数的位置上，这与一般函数不同，主函数在调用一般函数的时候，是指令跳转到被调用函数的入口地址...
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