./configure with a specified version of g++
How to tell to a 'configure' file to compile with a specified version of g++ ?Thanks.
View ArticleWhy does gcc converts floating point literals to double even after using an f...
This question already has an answer here:Default argument promotions in C function calls 3 answersConsider the following code from C Primer Plus:#include <stdio.h> int main() { float f = 7.0f;...
View ArticleUsing gcov to test a c++ program
I am using gcov for the first time to analyze my program (C++) The program consists of three classes and I have built the project using Code::Blocks. When I am invoking the program using the following...
View ArticleCMAKE_C_COMPILER is not a full path to an existing compiler tool
I recently explored distcc and couldn't make it work. So I sudo apt-get remove distcc After that, I get the error ==> Processing catkin package: 'gencpp' ==> Building with env:...
View ArticleHow to compile GCC on macOS Catalina? [duplicate]
This question already has an answer here:How to get Conda and Virtualenv to work on mac OS Catalina? 8 answersI am trying to compile GCC9 on macOS Catalina. The closest tutorial I've found is this...
View ArticleMissing header files on macOS Catalina [duplicate]
This question already has an answer here:How to get Conda and Virtualenv to work on mac OS Catalina? 8 answersI am having issues with header files on macOS Catalina. I get command-line tool errors like...
View Articlepython module 'signal' has no attribute 'SIGHUP'
C02TPARXG8WN:fal$ python Python 3.6.9 (default, Nov 10 2019, 01:00:31) [GCC 4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.10.44.4)] on darwin Type "help", "copyright", "credits" or "license" for more...
View ArticleCompile c++ code with inline-assembly & Intel syntax with gcc and implement it
I'm trying to implement c++ program which read string from c++ part of program, process it with inline assembly (convert all latin symbols to their HEX representation by number in ASCII table) and...
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Can't manage to set up environment and path to libraries under Visual studio...
After having installed the MongoDB drivers for c++ following this tutorial, I wrote a little bit of code that I managed to compile and run with the command:c++ --std=c++11 main.cpp -o app $(pkg-config...
View ArticleHow to specify register constraints on the Intel x86_64 register r8 to r15 in...
Here's the list of register loading codes:a eax b ebx c ecx d edx S esi D edi I constant value (0 to 31) q,r dynamically allocated register (see below) g eax, ebx, ecx, edx or variable in memory A eax...
View ArticleClass with a pointer to base class containing virtual method
This is a simple program to calculate a worker's salary based on contract type. In class worker I have a pointer to Contract. I declare in main whether it points to contract1 or contract2. But my...
View ArticleDoes someone know a C compiler which does not rely on gcc? [closed]
I am trying to see if my code is portable among many compilers other than GCC and absolutely other than compiler that accept the GNU C dialects, because I am using a lot of extensions and attributes....
View Articlestrcat() has a problem in xcode using gcc
if I compile with XCode at the height of strcat() the following error is returned:Thread 1: EXC_BAD_INSTRUCTION (code = EXC_I386_INVOP, subcode = 0x0) while, if I compile from terminal (gcc -Wall...
View ArticleWhy is this cpu going a lot faster?
i wrote a c program, run at Intel i5-7500(kubuntu with virtualbox run at win10) and Intel Xeon E5-26xx v4(tenxun cloud). i think Intel i5-7500 will be faster(CPU MHz:3.4GHz), but Intel Xeon E5-26xx...
View ArticleUnrecognised emulation mode: i386pep when linking x64 asm on Windows 10
I've tried to compile a "hello world" assembly program using nasm and gcc. I was able to run it succesfully using 32bit assemblation and linking:nasm -fwin32 hello.asm gcc hello.obj However, when...
View Articlegcc -Og flag is optimizing out variables set by inline calls [duplicate]
This question already has an answer here:Variables optimized out with g++ and the -Og option 1 answerOur project just started to use the -Og flag when compiling the software in debug mode vs. the -g3...
View Articlehow do I eliminate linker error mingw32/bin/ld.exe: cannot find -lSDL
I am trying to build SDL for use with Eclipse. I am trying to remove this linker error:Beginning Compilation21:15:53 **** Incremental Build of configuration Debug for project CMD **** Info: Internal...
View ArticleC, Getting errors in symbolic constant definitions (possibly in function...
I have been getting this error in a C program that I'm writing:progra10.c:48:25: error: expected ‘;’, ‘,’ or ‘)’ before numeric constant #define LAST_INDEX ARRAY_SIZE - 1 and program10.c:47:25: error:...
View ArticleExecuting performance gap between GCC and Clang
I have the following simple code and when I compiling them in GCC and Clang there is a huge performance difference between theirs execute times as you can see the results and the versions of the...
View ArticleDisable GCC "may be used uninitialized" on a particular variable
I'm getting this warning on a stack variable:warning: object.member may be used uninitialized in this function In this case I do not wish to force initialization to just to get rid of the warning as it...
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