cygwin

问题 I am trying to compile a linux c++ source code on Windows 7 Cygwin and getting following error: $ make getconf: Unrecognized variable `LFS_CFLAGS' gcc -O3 -Wall -Wextra -g -DVERSION='"v1.1.0"' -c src/main.c -o src/main.o src/main.c:10:25: schwerwiegender Fehler: sys/syscall.h: No such file or directory #include <sys/syscall.h> ^ Kompilierung beendet. Makefile:48: recipe for target 'src/main.o' failed make: *** [src/main.o] Error 1 I googled this but hadn't any success. Any ideas? 回答1: syscall

问题 It's the first time that I use the gmp library, so I'm really lost, I've found a code implementing the "miller rabin primality test" in c++ but I wanted to be able to apply it to integers with arbitrary precision so I installed the GMP library. The problem is, I've got no idea of how GMP library actually works (I've read trough a few pages of the manual but I understand very little about it also since I haven't even studied object oriented programming), I want to adapt the primality test to

问题 This is my first time using both Cygwin and cmake , I'm trying to build a project but keep getting errors. -bash: /usr/local/bin/cmake: cannot execute binary file The questions I have are, where should cmake be installed and how do I run it? Where should my source code be? Do I need anything extra to get cmake to work in Cygwin? Here is a link to the project I am trying to run: (https://github.com/erinaceous/shadows) 回答1: cmake is available in the Cygwin net distribution. You can install it

问题 I ported a multi-threaded Linux application to Windows and am testing it on a server running Windows 10 Pro. The performance of the Windows version is abysmal compared to the performance of the Linux version running on the same dual-boot hardware. I simplified the code to a small multi-threaded example that exhibits the same symptoms. I am hoping that the SO community can provide some insight as to why there are such performance differences between Windows and Linux for this application, and

问题 I ported a multi-threaded Linux application to Windows and am testing it on a server running Windows 10 Pro. The performance of the Windows version is abysmal compared to the performance of the Linux version running on the same dual-boot hardware. I simplified the code to a small multi-threaded example that exhibits the same symptoms. I am hoping that the SO community can provide some insight as to why there are such performance differences between Windows and Linux for this application, and

问题 I ported a multi-threaded Linux application to Windows and am testing it on a server running Windows 10 Pro. The performance of the Windows version is abysmal compared to the performance of the Linux version running on the same dual-boot hardware. I simplified the code to a small multi-threaded example that exhibits the same symptoms. I am hoping that the SO community can provide some insight as to why there are such performance differences between Windows and Linux for this application, and

问题 I ported a multi-threaded Linux application to Windows and am testing it on a server running Windows 10 Pro. The performance of the Windows version is abysmal compared to the performance of the Linux version running on the same dual-boot hardware. I simplified the code to a small multi-threaded example that exhibits the same symptoms. I am hoping that the SO community can provide some insight as to why there are such performance differences between Windows and Linux for this application, and

问题 The Idea I've compiled a C++ exe using G++ on Cygwin, and I want to be able to get the output of that exe into my HTML via PHP. That is, let's say I have a C++ executable "test.exe" which outputs "Hello, World!" when run. Then logically, I should be able to do <?=exec("./test.exe")?> To send the output of the test.exe file to the file. The Issue I'm testing this on a local WAMP server on Win7. Apparently, exec and system calls on Win7 WAMP go through the Windows command prompt, meaning it's

问题 The Idea I've compiled a C++ exe using G++ on Cygwin, and I want to be able to get the output of that exe into my HTML via PHP. That is, let's say I have a C++ executable "test.exe" which outputs "Hello, World!" when run. Then logically, I should be able to do <?=exec("./test.exe")?> To send the output of the test.exe file to the file. The Issue I'm testing this on a local WAMP server on Win7. Apparently, exec and system calls on Win7 WAMP go through the Windows command prompt, meaning it's

问题 The Idea I've compiled a C++ exe using G++ on Cygwin, and I want to be able to get the output of that exe into my HTML via PHP. That is, let's say I have a C++ executable "test.exe" which outputs "Hello, World!" when run. Then logically, I should be able to do <?=exec("./test.exe")?> To send the output of the test.exe file to the file. The Issue I'm testing this on a local WAMP server on Win7. Apparently, exec and system calls on Win7 WAMP go through the Windows command prompt, meaning it's