Recent questions tagged Gcc

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gcc - Status of __STDC_IEC_559__ with modern C compilers

C99 added a macro __STDC_IEC_559__ which can be used to test if a compiler and standard library conform to ... this statement still accurate? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Which inline assembly code is correct for rdtscp?

Disclaimer: Words cannot describe how much I detest AT&T style syntax I have a problem that I hope is caused by ... or version 2, or both? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Standard C library in mingW

I have installed mingW to use gcc, platform windows 7. I am trying to locate the standard C library libc.a in ... it stored in some other name? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Integer overflow in C: standards and compilers

Edited to include proper standard reference thanks to Carl Norum. The C standard states If an exceptional ... in the informative annex. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Compile with older libc (version `GLIBC_2.14' not found)

I have to compile a program on a current ubuntu (12.04). This program should then run on a cluster using ... I link the old libc correctly? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Eclipse CDT shows semantic errors, but compilation is ok

I have installed Eclipse Indigo for C/C++ Linux developers on Ubuntu 10.04 x86. When I use common predefined macro ... :) How can I fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - could not read symbols: Archive has no index; run ranlib to add one

i tried making library with ar -r -c -s libtestlib.a *.o as given in this tutorial http:// ... suggest me some solution for this See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Do programming language compilers first translate to assembly or directly to machine code?

I'm primarily interested in popular and widely used compilers, such as gcc. But if things are done differently with ... are written for Linux.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - How to set the LDFLAGS in CMakeLists.txt?

I set the CFLAGS in CMake by CMAKE_C_FLAGS. Is something like this to set LDFLAGS? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - CFLAGS, CCFLAGS, CXXFLAGS - what exactly do these variables control?

I am using GNU make to compile my C++ code, and i would like to understand how to make my ... the general idea behind these settings. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - What exactly is LLVM?

I keep hearing about LLVM all the time. It's in Perl, then it's in Haskell, then someone uses it in some ... GCC (perspectives = safety etc.)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Errors using ternary operator in c

I have a piece of code in C given as follows : main() { int a=10, b; a>=5 ? b=100 : b=200 ... explain what exactly is happening in this case ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Compile Python code to statically linked executable with Cython

I have a pure Python script that I would like to distribute to systems with unkown Python configuration. Therefore ... given by python3-config? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - In GNU C inline asm, what are the size-override modifiers for xmm/ymm/zmm for a single operand?

While trying to answer Embedded broadcasts with intrinsics and assembly, I was trying to do something like this ... about embedded broadcasts.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - What is "..." in switch-case in C code

Here is a piece of code in /usr/src/linux-3.10.10-1-ARCH/include/linux/printk.h: static inline int ... C Programming Language" not mention it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - How to use clang with mingw-w64 headers on windows

I have clang 3.9 from http://llvm.org/releases/3.9.0/LLVM-3.9.0-win32.exe clang version 3.9.0 ( ... mingw build to get it working with mingw? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - execute binary machine code from C

following this instructions I have managed to produce only 528 bytes in size a.out (when gcc main.c gave me ... in different way since SIGSEGV? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - How do I compile Python 3.4 with custom OpenSSL?

I have my own OpenSSL installation in a non-standard location (/my/path for the sake of this example) and I want ... I'm doing wrong, any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - How do I force cmake to include "-pthread" option during compilation?

I know there is something like find_package(Threads) but it doesn't seem to make a difference (at least by itself ... a correct solution to me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - How to add compiler flags on codeblocks

I've been trying to compile a simple multithreaded piece of code I found online in an effort to learn how to ... build log none of them appear. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Order of fields when using a bit field in C

I have a struct of the following type typedef struct { unsigned int a : 8; unsigned int b : 6; unsigned int ... wrong? Thank you for your help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - ARM compilation error, VFP registers used by executable, not object file

I have been having this problem for the last few days and I can't get my head around what is really happening here ... : *** [perf_test] Error 1 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Is there a Linux equivalent of Windows' "resource files"?

I have a C library, which I build as a shared object for Linux and a DLL for Windows with MinGW32. The ... better, is there a portable solution? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Linking with dynamic library with dependencies

Consider the following scenario: Shared Library libA.so ,with no dependencies. Shared Library libB.so, with libA. ... much better. Thanks again. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - -isystem on a system include directory causes errors

What's up with the following code? #include <cmath> int main(int argc, char *argv[]) { } When compiled on ... error above appears in the build. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - C++ project compiled with modern compiler, but linked against outdated libstdc++

Consider the situation when a C++ project is built and shipped within a Centos 7 virtual machine or ... build environment configuration valid? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Linking a C program directly with ld fails with undefined reference to `__libc_csu_fini`

I'm trying to compile a C program under Linux. However, out of curiosity, I'm trying to execute some steps ... . What could the problem be? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - What does !!(x) mean in C (esp. the Linux kernel)?

I've been reading through the Linux kernel (specifically, 2.6.11). I came across the following definition: #define ... Negation in C++ code. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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