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Segmentation Fault at programme launch

B
baileigh last edited by
I'm trying to get C++ code on my Debian machine. Using the GCC Compilator. He's compiling my code without mistakes and warnings, but at the time of the launch, I get a mistake. Segmentation fault♪ Googled this problem and found something. Suggest that the debag programme be implemented through the GDB. What I did:
```
gcc /путь_к_программе -g
gdb ./a.out
run
backtrace
```
In the end, debagger told me that there was a mistake in this section of the code:
```
while(fgets(strLine, 256, list_fd) != NULL)
    {
            ParseResolverLine(strLine, iLine);
            iLine++;
    }
```
Delivery of the debagger himself:
```
#0  _IO_fgets (buf=0x607010 "", n=256, fp=0x0) at iofgets.c:50
#1  0x000000000040185f in main (argc=6, argv=0x7fffffffec68)
```
In fact, I don't know where the code is in the area I mentioned.
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O
obi last edited by

You. list_fd equal NULL (sighs)fp=0x0 in the sweet. Make sure the file's open if something doesn't work. fopen() returns NULL♪
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Experimentally, there's no way to get a full multiplication more slow than float. It is possible that long int and 32-bit processor tracking is slower for large operations. I have a 64-bit multiplication of float-s and long-long-ints almost matched in time (+-1 second)By the way, it's interesting to see that the key is a m32, and in the 64-bit rock, the speed fell to a catastrophic low, but even then the float-up is slower. And no keys like fast-math, etc. help. It seems to be a very private case in some very unequal setting.Here's my test, if anyone's interested:#include <stdio.h> #include <time.h> int main(void) { const long long int count = 100000000; time_t start, end; time(0); { long long int a = 7; time(&start); for(long long int i = 0; i < count; ++i) { a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; } time(&end); printf("a = %lld, time = %d\n", a, (int)(end - start)); } { float a = 7e200; time(&start); for(long long int i = 0; i < count; ++i) { a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; a = a * 999; } time(&end); printf("a = %f, time = %d\n", a, (int)(end - start)); } return 0; } Here's his results with different variations:cy6ergn0m@cgmachine tests/cpp/2 $ g++ -ffast-math -m32 main.cc cy6ergn0m@cgmachine tests/cpp/2 $ ./a.out a = 7409966934681833479, time = 6 a = inf, time = 146 cy6ergn0m@cgmachine tests/cpp/2 $ g++ -ffast-math main.cc cy6ergn0m@cgmachine tests/cpp/2 $ ./a.out a = 7409966934681833479, time = 5 a = inf, time = 6 cy6ergn0m@cgmachine tests/cpp/2 $ g++ main.cc cy6ergn0m@cgmachine tests/cpp/2 $ ./a.out a = 7409966934681833479, time = 4 a = inf, time = 6 cy6ergn0m@cgmachine tests/cpp/2 $ g++ -m32 main.cc cy6ergn0m@cgmachine tests/cpp/2 $ ./a.out a = 7409966934681833479, time = 6 a = inf, time = 145 cy6ergn0m@cgmachine tests/cpp/2 $ cy6ergn0m@cgmachine tests/cpp/2 $ cat /proc/cpuinfo | grep name model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz model name : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz cy6ergn0m@cgmachine tests/cpp/2 $ uname -a Linux cgmachine 2.6.33.7-desktop-2mnb #1 SMP Mon Sep 20 18:19:20 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux cy6ergn0m@cgmachine tests/cpp/2 $ As you can see, all the results of the same order. In addition to multiplying float'a in emulation mode (completing 32-bit code in 64-bit environment). However, float multiplicity is always a little behind. If count increases ten times, the difference is even more visible.cy6ergn0m@cgmachine tests/cpp/2 $ g++ main.cc cy6ergn0m@cgmachine tests/cpp/2 $ ./a.out a = 3874608091370758151, time = 42 a = inf, time = 57 cy6ergn0m@cgmachine tests/cpp/2 $ If the total load on the system is higher (more different processes are running off a floating block), the difference will be even more visible, as the changing contexts of floating comma operations are expensive. UPD: At the request of the workers, I bring a platoon leap without all the keys:00000000004005c4 <main>: 4005c4: 55 push %rbp 4005c5: 48 89 e5 mov %rsp,%rbp 4005c8: 48 83 ec 40 sub $0x40,%rsp 4005cc: 48 c7 45 d8 00 ca 9a movq $0x3b9aca00,-0x28(%rbp) 4005d3: 3b 4005d4: bf 00 00 00 00 mov $0x0,%edi 4005d9: e8 f2 fe ff ff callq 4004d0 <time@plt> 4005de: 48 c7 45 e0 07 00 00 movq $0x7,-0x20(%rbp) 4005e5: 00 4005e6: 48 8d 45 d0 lea -0x30(%rbp),%rax 4005ea: 48 89 c7 mov %rax,%rdi 4005ed: e8 de fe ff ff callq 4004d0 <time@plt> 4005f2: 48 c7 45 e8 00 00 00 movq $0x0,-0x18(%rbp) 4005f9: 00 4005fa: e9 9b 00 00 00 jmpq 40069a <main+0xd6> 4005ff: 48 8b 45 e0 mov -0x20(%rbp),%rax 400603: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 40060a: 48 89 45 e0 mov %rax,-0x20(%rbp) 40060e: 48 8b 45 e0 mov -0x20(%rbp),%rax 400612: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400619: 48 89 45 e0 mov %rax,-0x20(%rbp) 40061d: 48 8b 45 e0 mov -0x20(%rbp),%rax 400621: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400628: 48 89 45 e0 mov %rax,-0x20(%rbp) 40062c: 48 8b 45 e0 mov -0x20(%rbp),%rax 400630: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400637: 48 89 45 e0 mov %rax,-0x20(%rbp) 40063b: 48 8b 45 e0 mov -0x20(%rbp),%rax 40063f: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400646: 48 89 45 e0 mov %rax,-0x20(%rbp) 40064a: 48 8b 45 e0 mov -0x20(%rbp),%rax 40064e: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400655: 48 89 45 e0 mov %rax,-0x20(%rbp) 400659: 48 8b 45 e0 mov -0x20(%rbp),%rax 40065d: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400664: 48 89 45 e0 mov %rax,-0x20(%rbp) 400668: 48 8b 45 e0 mov -0x20(%rbp),%rax 40066c: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400673: 48 89 45 e0 mov %rax,-0x20(%rbp) 400677: 48 8b 45 e0 mov -0x20(%rbp),%rax 40067b: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400682: 48 89 45 e0 mov %rax,-0x20(%rbp) 400686: 48 8b 45 e0 mov -0x20(%rbp),%rax 40068a: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400691: 48 89 45 e0 mov %rax,-0x20(%rbp) 400695: 48 83 45 e8 01 addq $0x1,-0x18(%rbp) 40069a: 48 81 7d e8 ff c9 9a cmpq $0x3b9ac9ff,-0x18(%rbp) 4006a1: 3b 4006a2: 0f 9e c0 setle %al 4006a5: 84 c0 test %al,%al 4006a7: 0f 85 52 ff ff ff jne 4005ff <main+0x3b> 4006ad: 48 8d 45 c8 lea -0x38(%rbp),%rax 4006b1: 48 89 c7 mov %rax,%rdi 4006b4: e8 17 fe ff ff callq 4004d0 <time@plt> 4006b9: 48 8b 45 c8 mov -0x38(%rbp),%rax 4006bd: 89 c2 mov %eax,%edx 4006bf: 48 8b 45 d0 mov -0x30(%rbp),%rax 4006c3: 89 d1 mov %edx,%ecx 4006c5: 29 c1 sub %eax,%ecx 4006c7: 89 c8 mov %ecx,%eax 4006c9: 89 c2 mov %eax,%edx 4006cb: 48 8b 45 e0 mov -0x20(%rbp),%rax 4006cf: 48 89 c6 mov %rax,%rsi 4006d2: bf 2c 09 40 00 mov $0x40092c,%edi 4006d7: b8 00 00 00 00 mov $0x0,%eax 4006dc: e8 bf fd ff ff callq 4004a0 <printf@plt> 4006e1: b8 00 00 80 7f mov $0x7f800000,%eax 4006e6: 89 45 f4 mov %eax,-0xc(%rbp) 4006e9: 48 8d 45 d0 lea -0x30(%rbp),%rax 4006ed: 48 89 c7 mov %rax,%rdi 4006f0: e8 db fd ff ff callq 4004d0 <time@plt> 4006f5: 48 c7 45 f8 00 00 00 movq $0x0,-0x8(%rbp) 4006fc: 00 4006fd: e9 e1 00 00 00 jmpq 4007e3 <main+0x21f> 400702: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 400707: f3 0f 10 05 45 02 00 movss 0x245(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 40070e: 00 40070f: f3 0f 59 c1 mulss %xmm1,%xmm0 400713: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 400718: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 40071d: f3 0f 10 05 2f 02 00 movss 0x22f(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 400724: 00 400725: f3 0f 59 c1 mulss %xmm1,%xmm0 400729: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 40072e: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 400733: f3 0f 10 05 19 02 00 movss 0x219(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 40073a: 00 40073b: f3 0f 59 c1 mulss %xmm1,%xmm0 40073f: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 400744: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 400749: f3 0f 10 05 03 02 00 movss 0x203(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 400750: 00 400751: f3 0f 59 c1 mulss %xmm1,%xmm0 400755: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 40075a: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 40075f: f3 0f 10 05 ed 01 00 movss 0x1ed(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 400766: 00 400767: f3 0f 59 c1 mulss %xmm1,%xmm0 40076b: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 400770: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 400775: f3 0f 10 05 d7 01 00 movss 0x1d7(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 40077c: 00 40077d: f3 0f 59 c1 mulss %xmm1,%xmm0 400781: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 400786: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 40078b: f3 0f 10 05 c1 01 00 movss 0x1c1(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 400792: 00 400793: f3 0f 59 c1 mulss %xmm1,%xmm0 400797: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 40079c: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 4007a1: f3 0f 10 05 ab 01 00 movss 0x1ab(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 4007a8: 00 4007a9: f3 0f 59 c1 mulss %xmm1,%xmm0 4007ad: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 4007b2: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 4007b7: f3 0f 10 05 95 01 00 movss 0x195(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 4007be: 00 4007bf: f3 0f 59 c1 mulss %xmm1,%xmm0 4007c3: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 4007c8: f3 0f 10 4d f4 movss -0xc(%rbp),%xmm1 4007cd: f3 0f 10 05 7f 01 00 movss 0x17f(%rip),%xmm0 # 400954 <_IO_stdin_used+0x2c> 4007d4: 00 4007d5: f3 0f 59 c1 mulss %xmm1,%xmm0 4007d9: f3 0f 11 45 f4 movss %xmm0,-0xc(%rbp) 4007de: 48 83 45 f8 01 addq $0x1,-0x8(%rbp) 4007e3: 48 81 7d f8 ff c9 9a cmpq $0x3b9ac9ff,-0x8(%rbp) 4007ea: 3b 4007eb: 0f 9e c0 setle %al 4007ee: 84 c0 test %al,%al 4007f0: 0f 85 0c ff ff ff jne 400702 <main+0x13e> 4007f6: 48 8d 45 c8 lea -0x38(%rbp),%rax 4007fa: 48 89 c7 mov %rax,%rdi 4007fd: e8 ce fc ff ff callq 4004d0 <time@plt> 400802: 48 8b 45 c8 mov -0x38(%rbp),%rax 400806: 89 c2 mov %eax,%edx 400808: 48 8b 45 d0 mov -0x30(%rbp),%rax 40080c: 89 d1 mov %edx,%ecx 40080e: 29 c1 sub %eax,%ecx 400810: 89 c8 mov %ecx,%eax 400812: f3 0f 10 45 f4 movss -0xc(%rbp),%xmm0 400817: 0f 5a c0 cvtps2pd %xmm0,%xmm0 40081a: 89 c6 mov %eax,%esi 40081c: bf 41 09 40 00 mov $0x400941,%edi 400821: b8 01 00 00 00 mov $0x1,%eax 400826: e8 75 fc ff ff callq 4004a0 <printf@plt> 40082b: b8 00 00 00 00 mov $0x0,%eax 400830: c9 leaveq 400831: c3 retq 400832: 90 nop 400833: 90 nop 400834: 90 nop 400835: 90 nop 400836: 90 nop 400837: 90 nop 400838: 90 nop 400839: 90 nop 40083a: 90 nop 40083b: 90 nop 40083c: 90 nop 40083d: 90 nop 40083e: 90 nop 40083f: 90 nop Now, if you get the keys-march=core2-mfpmath=both, it's got a few other codes:00000000004005c4 <main>: 4005c4: 55 push %rbp 4005c5: 48 89 e5 mov %rsp,%rbp 4005c8: 48 83 ec 40 sub $0x40,%rsp 4005cc: 48 c7 45 d8 00 ca 9a movq $0x3b9aca00,-0x28(%rbp) 4005d3: 3b 4005d4: bf 00 00 00 00 mov $0x0,%edi 4005d9: e8 f2 fe ff ff callq 4004d0 <time@plt> 4005de: 48 c7 45 e0 07 00 00 movq $0x7,-0x20(%rbp) 4005e5: 00 4005e6: 48 8d 45 d0 lea -0x30(%rbp),%rax 4005ea: 48 89 c7 mov %rax,%rdi 4005ed: e8 de fe ff ff callq 4004d0 <time@plt> 4005f2: 48 c7 45 e8 00 00 00 movq $0x0,-0x18(%rbp) 4005f9: 00 4005fa: e9 9a 00 00 00 jmpq 400699 <main+0xd5> 4005ff: 48 8b 45 e0 mov -0x20(%rbp),%rax 400603: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 40060a: 48 89 45 e0 mov %rax,-0x20(%rbp) 40060e: 48 8b 45 e0 mov -0x20(%rbp),%rax 400612: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400619: 48 89 45 e0 mov %rax,-0x20(%rbp) 40061d: 48 8b 45 e0 mov -0x20(%rbp),%rax 400621: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400628: 48 89 45 e0 mov %rax,-0x20(%rbp) 40062c: 48 8b 45 e0 mov -0x20(%rbp),%rax 400630: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400637: 48 89 45 e0 mov %rax,-0x20(%rbp) 40063b: 48 8b 45 e0 mov -0x20(%rbp),%rax 40063f: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400646: 48 89 45 e0 mov %rax,-0x20(%rbp) 40064a: 48 8b 45 e0 mov -0x20(%rbp),%rax 40064e: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400655: 48 89 45 e0 mov %rax,-0x20(%rbp) 400659: 48 8b 45 e0 mov -0x20(%rbp),%rax 40065d: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400664: 48 89 45 e0 mov %rax,-0x20(%rbp) 400668: 48 8b 45 e0 mov -0x20(%rbp),%rax 40066c: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400673: 48 89 45 e0 mov %rax,-0x20(%rbp) 400677: 48 8b 45 e0 mov -0x20(%rbp),%rax 40067b: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400682: 48 89 45 e0 mov %rax,-0x20(%rbp) 400686: 48 8b 45 e0 mov -0x20(%rbp),%rax 40068a: 48 69 c0 e7 03 00 00 imul $0x3e7,%rax,%rax 400691: 48 89 45 e0 mov %rax,-0x20(%rbp) 400695: 48 ff 45 e8 incq -0x18(%rbp) 400699: 48 81 7d e8 ff c9 9a cmpq $0x3b9ac9ff,-0x18(%rbp) 4006a0: 3b 4006a1: 0f 9e c0 setle %al 4006a4: 84 c0 test %al,%al 4006a6: 0f 85 53 ff ff ff jne 4005ff <main+0x3b> 4006ac: 48 8d 45 c8 lea -0x38(%rbp),%rax 4006b0: 48 89 c7 mov %rax,%rdi 4006b3: e8 18 fe ff ff callq 4004d0 <time@plt> 4006b8: 48 8b 45 c8 mov -0x38(%rbp),%rax 4006bc: 89 c2 mov %eax,%edx 4006be: 48 8b 45 d0 mov -0x30(%rbp),%rax 4006c2: 89 d1 mov %edx,%ecx 4006c4: 29 c1 sub %eax,%ecx 4006c6: 89 c8 mov %ecx,%eax 4006c8: 89 c2 mov %eax,%edx 4006ca: 48 8b 45 e0 mov -0x20(%rbp),%rax 4006ce: 48 89 c6 mov %rax,%rsi 4006d1: bf cc 08 40 00 mov $0x4008cc,%edi 4006d6: b8 00 00 00 00 mov $0x0,%eax 4006db: e8 c0 fd ff ff callq 4004a0 <printf@plt> 4006e0: b8 00 00 80 7f mov $0x7f800000,%eax 4006e5: 89 45 f4 mov %eax,-0xc(%rbp) 4006e8: 48 8d 45 d0 lea -0x30(%rbp),%rax 4006ec: 48 89 c7 mov %rax,%rdi 4006ef: e8 dc fd ff ff callq 4004d0 <time@plt> 4006f4: 48 c7 45 f8 00 00 00 movq $0x0,-0x8(%rbp) 4006fb: 00 4006fc: e9 90 00 00 00 jmpq 400791 <main+0x1cd> 400701: d9 45 f4 flds -0xc(%rbp) 400704: d9 05 ea 01 00 00 flds 0x1ea(%rip) # 4008f4 <_IO_stdin_used+0x2c> 40070a: de c9 fmulp %st,%st(1) 40070c: d9 5d f4 fstps -0xc(%rbp) 40070f: d9 45 f4 flds -0xc(%rbp) 400712: d9 05 dc 01 00 00 flds 0x1dc(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400718: de c9 fmulp %st,%st(1) 40071a: d9 5d f4 fstps -0xc(%rbp) 40071d: d9 45 f4 flds -0xc(%rbp) 400720: d9 05 ce 01 00 00 flds 0x1ce(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400726: de c9 fmulp %st,%st(1) 400728: d9 5d f4 fstps -0xc(%rbp) 40072b: d9 45 f4 flds -0xc(%rbp) 40072e: d9 05 c0 01 00 00 flds 0x1c0(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400734: de c9 fmulp %st,%st(1) 400736: d9 5d f4 fstps -0xc(%rbp) 400739: d9 45 f4 flds -0xc(%rbp) 40073c: d9 05 b2 01 00 00 flds 0x1b2(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400742: de c9 fmulp %st,%st(1) 400744: d9 5d f4 fstps -0xc(%rbp) 400747: d9 45 f4 flds -0xc(%rbp) 40074a: d9 05 a4 01 00 00 flds 0x1a4(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400750: de c9 fmulp %st,%st(1) 400752: d9 5d f4 fstps -0xc(%rbp) 400755: d9 45 f4 flds -0xc(%rbp) 400758: d9 05 96 01 00 00 flds 0x196(%rip) # 4008f4 <_IO_stdin_used+0x2c> 40075e: de c9 fmulp %st,%st(1) 400760: d9 5d f4 fstps -0xc(%rbp) 400763: d9 45 f4 flds -0xc(%rbp) 400766: d9 05 88 01 00 00 flds 0x188(%rip) # 4008f4 <_IO_stdin_used+0x2c> 40076c: de c9 fmulp %st,%st(1) 40076e: d9 5d f4 fstps -0xc(%rbp) 400771: d9 45 f4 flds -0xc(%rbp) 400774: d9 05 7a 01 00 00 flds 0x17a(%rip) # 4008f4 <_IO_stdin_used+0x2c> 40077a: de c9 fmulp %st,%st(1) 40077c: d9 5d f4 fstps -0xc(%rbp) 40077f: d9 45 f4 flds -0xc(%rbp) 400782: d9 05 6c 01 00 00 flds 0x16c(%rip) # 4008f4 <_IO_stdin_used+0x2c> 400788: de c9 fmulp %st,%st(1) 40078a: d9 5d f4 fstps -0xc(%rbp) 40078d: 48 ff 45 f8 incq -0x8(%rbp) 400791: 48 81 7d f8 ff c9 9a cmpq $0x3b9ac9ff,-0x8(%rbp) 400798: 3b 400799: 0f 9e c0 setle %al 40079c: 84 c0 test %al,%al 40079e: 0f 85 5d ff ff ff jne 400701 <main+0x13d> 4007a4: 48 8d 45 c8 lea -0x38(%rbp),%rax 4007a8: 48 89 c7 mov %rax,%rdi 4007ab: e8 20 fd ff ff callq 4004d0 <time@plt> 4007b0: 48 8b 45 c8 mov -0x38(%rbp),%rax 4007b4: 89 c2 mov %eax,%edx 4007b6: 48 8b 45 d0 mov -0x30(%rbp),%rax 4007ba: 89 d1 mov %edx,%ecx 4007bc: 29 c1 sub %eax,%ecx 4007be: 89 c8 mov %ecx,%eax 4007c0: f3 0f 5a 45 f4 cvtss2sd -0xc(%rbp),%xmm0 4007c5: 89 c6 mov %eax,%esi 4007c7: bf e1 08 40 00 mov $0x4008e1,%edi 4007cc: b8 01 00 00 00 mov $0x1,%eax 4007d1: e8 ca fc ff ff callq 4004a0 <printf@plt> 4007d6: b8 00 00 00 00 mov $0x0,%eax 4007db: c9 leaveq 4007dc: c3 retq 4007dd: 90 nop 4007de: 90 nop 4007df: 90 nop
C

Why does this function to count the number of lines of a file always return me 1?
Software Programming • c++ • • chanisef

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The problem is that you don't read each of the lines. Simply check that you have not reached the end of the file and then you increase in a unit the value of i. To be able to do it properly, just read each of the lines in the loop:while (getline(fichero, linea)) { i++; } Function getline of std allows reading ifstream by lines, when you reach the end of the file is function will return nullwhich will be assessed false So the loop will be finished and you will close the file.
B

Use typename
Software Programming • c++ visual c++ boxes with++ • • baileigh

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Oh, familiar code : The fact is that MSVC does not quite correctly implement the standard for consistency with the old code, as well as, I understand, for the needs of its own libraries (SDK), and compils this code even in the ANSI mode./Za /Wall) GCC, for example, this code http://ideone.com/PBe5Pa ♪
K

Is there a standard displacement algorithm?
Software Programming • c++ • • Kadir

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Where and std::copy Yes http://en.cppreference.com/w/cpp/algorithm/move
A

No programme result
Software Programming • python bioinformatics • • amarantha

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First thing that comes to mind.You've got a set of functions, and where's the challenge from the main body of this program?without the program doing nothing.mass proteins and object pattern_nucleotides No function is used anywhere, and vice versa - nowhere in the main code is the function (see p.1)concerning the filling AA2NA Just the question, why not list("GCT,GCC,GCA,GCG".split(",")), No. list("GCT","GCC","GCA","GCG"), It's like the same thing, but visually it's a little easier.
A

Connection dll
Software Programming • c++ dll • • amarantha

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There may be nothing in the project ' s properties for corrective work through LoadLibrary() + GetProcAddress()♪ It may be convenient to add titles describing the functions and structure of DLL data, but not necessarily.The problem with "wchar" is solved by obvious use. LoadLibraryA()♪
D

Error "enumeration cannot be a template" Are you sure?
Software Programming • c++ enum language attorney • • Duquan

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http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/n4849.pdf Section 13.1 says a template defines a family of classes, functions, or variables, an alias by a family of types, or a concept. Apparently, wasn't one of these listed, even if it was a guy?A template defines a family of classes, functions, or variables, an alias for a family of types, or a concept.Based on this question in Stack Overflow in English: https://stackoverflow.com/a/38280474/5445670 .
c++ Errors in Soketa
Software Programming • c++ winsock tall • • Laycee

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I take the Croessmath comment back.To be able to work with the sockets, the subsystem should be initialized. This is done by challenging the function https://docs.microsoft.com/en-us/windows/win32/api/winsock/nf-winsock-wsastartup to provide the necessary WinSock version of the request: WORD wVersionRequested; WSADATA wsaData; int err; wVersionRequested = MAKEWORD(2, 2); err = WSAStartup(wVersionRequested, &wsaData); if (err != 0) { /* Сообщение, что все плохо и Winsock DLL не найдена. */ printf("WSAStartup failed with error: %d\n", err); return 1; } /* Проверка, что WinSock DLL поддерживает версию 2.2.*/ if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) { /* Сообщение, что все плохо и Winsock DLL не найдена. */ printf("Could not find a usable version of Winsock.dll\n"); WSACleanup(); return 1; } else printf("The Winsock 2.2 dll was found okay\n");
M

Compiled programme not launched
Software Programming • python • • meriah

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Try creating an exe team.pyinstaller --noupx --onefile --noconsole script.py script.py Your violin file.If you're building a project in a virtual environment, that's what it is. pyinstaller should be in the same environment.P.S. In the case of pyqt, a path may be required. Examples pyinstaller --noupx --onefile --noconsole --path PATH_TO_VENV\Lib\site-packages\PyQt5\Qt\bin script.py♪ The pyperclip nuances have not been encountered, but it may be useful.

Segmentation Fault at programme launch

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