compilation

问题 This question already has answers here : What does the 'static' keyword do in a class? (21 answers) Closed last month . In many languages, e.g. Java and JavaScript, the 'static' keyword refers to class methods or class variables. Why is it called the 'static' method? Why not 'blue' method? Or 'global' method? Where does the keyword come from? What is the origin for that denomination? Is it related to the compiler? 回答1: To answer to ur 1st and 2nd question A static method belongs to the class

问题 I'm trying to compile ANN. I compiled using the following command, make linux-g ++ Later when I try to use this in another code, the code is not compiling. I'm getting the following error, > relocation R_X86_64_PC32 against symbol `_ZSt4cerr@@GLIBCXX_3.4' can > not be used when making a shared object; recompile with -fPIC > /usr/bin/ld: final link failed: Bad value After going through various questions , I tried adding the following line to CMAKE, set_target_properties(${LIBRARY_NAME}

问题 I have generated a code base using STM32Cube for STM32F205RB to be used within Atollic TrueSTUDIO. The project does not build, giving the error: arm-atollic-eabi-gcc -c -mthumb -std=gnu90 -DUSE_HAL_DRIVER -DSTM32F205xx -IC:\Users\Elliott\Atollic\TrueSTUDIO\ARM_workspace\USBInterfaceCUBE\USBInterfaceCube/Inc -IC:\Users\Elliott\Atollic\TrueSTUDIO\ARM_workspace\USBInterfaceCUBE\USBInterfaceCube/Drivers/STM32F2xx_HAL_Driver/Inc -IC:\Users\Elliott\Atollic\TrueSTUDIO\ARM_workspace\USBInterfaceCUBE

问题 I have configured and make libtiff properly. Now I am trying to build another library which is dependent on the tiff library. I am getting the following error checking for TIFF support ... checking tiff.h usability... yes checking tiff.h presence... yes checking for tiff.h... yes checking tiffio.h usability... yes checking tiffio.h presence... yes checking for tiffio.h... yes checking for TIFFOpen in -ltiff... no checking for TIFFClientOpen in -ltiff... no checking for TIFFIsByteSwapped in

问题 I have configured and make libtiff properly. Now I am trying to build another library which is dependent on the tiff library. I am getting the following error checking for TIFF support ... checking tiff.h usability... yes checking tiff.h presence... yes checking for tiff.h... yes checking tiffio.h usability... yes checking tiffio.h presence... yes checking for tiffio.h... yes checking for TIFFOpen in -ltiff... no checking for TIFFClientOpen in -ltiff... no checking for TIFFIsByteSwapped in

问题 I have configured and make libtiff properly. Now I am trying to build another library which is dependent on the tiff library. I am getting the following error checking for TIFF support ... checking tiff.h usability... yes checking tiff.h presence... yes checking for tiff.h... yes checking tiffio.h usability... yes checking tiffio.h presence... yes checking for tiffio.h... yes checking for TIFFOpen in -ltiff... no checking for TIFFClientOpen in -ltiff... no checking for TIFFIsByteSwapped in

问题 I have this struct below struct foo { char *name; int (*validate)(u8_t *data, size_t size); u8_t value; u8_t changed; foo_id id; }; typedef struct foo foo_t; I wish I to create an array of foo_t in compiling time through defines, like this: int my_validate(u8_t *data, size_t size) {...} FOO_CREATE(my_name, my_validate, 0, 0); FOO_CREATE(my_name2, NULL, 0, 0); and in compiling time the result be: enum { MY_NAME_FOO = 0, MY_NAME2_FOO, FOO_COUNT } foo_id; static foo_t foo[FOO_COUNT] = { { .name

问题 I'm using the Windows version of Clang (LLVM) 8 under Windows. I'm compiling a code which uses OpenMP. Under the lib folder of Clang there are 2 files which are OpenMP related: libomp.lib . libiomp5md.dll . My questions are: When I compile the code I use the flags -Xclang -fopenmp for the compiler. In in GCC and ICC using the flags tell the compiler to link the OpenMP library automatically. What about Clang? Does it do it automatically or must I link with libomp.lib manually? Is there a way

问题 I'm using the Windows version of Clang (LLVM) 8 under Windows. I'm compiling a code which uses OpenMP. Under the lib folder of Clang there are 2 files which are OpenMP related: libomp.lib . libiomp5md.dll . My questions are: When I compile the code I use the flags -Xclang -fopenmp for the compiler. In in GCC and ICC using the flags tell the compiler to link the OpenMP library automatically. What about Clang? Does it do it automatically or must I link with libomp.lib manually? Is there a way

问题 I'm using the Windows version of Clang (LLVM) 8 under Windows. I'm compiling a code which uses OpenMP. Under the lib folder of Clang there are 2 files which are OpenMP related: libomp.lib . libiomp5md.dll . My questions are: When I compile the code I use the flags -Xclang -fopenmp for the compiler. In in GCC and ICC using the flags tell the compiler to link the OpenMP library automatically. What about Clang? Does it do it automatically or must I link with libomp.lib manually? Is there a way