eclipse - C++ HelloWorld program compiled with MinGW crashes with "Illegal Argument" -

-

i decided time learned c++, , after struggling 3+ hours trying compiler work, created working program. however, seemingly spontaneously broke when tried refactor project in eclipse cutting , pasting it. program crashes, , windows brings dreaded dialogue "helloworld.exe has stopped working." bit of debugging revealed "cout" considered illegal argument. looked more issue, , i'm suspicious has compiler apparently being 32-bit, have 64-bit system. executable listed in eclipse "helloworld.exe - [x86/le]." (minus period.) program in full below:

#include <iostream>  using namespace std;  int main(){     cout << "hello world!" << endl;     return 0; }

i've discovered creating new "helloworld" c++ project in eclipse absolutely nothing fix issue, using unmodified code , settings. have suggestions why happen?

edit: debugging information: upon running program:

hello world! program received signal signill, illegal instruction. 0x6fccc3c0 in libstdc++-6!_zst4cout ()     c:\windows\syswow64\libstdc++-6.dll (gdb) bt #0   0x6fccc3c0 in libstdc++-6~_zst4cout ()     c:\windows\syswow64\libstdc++-6.dll #1   0x6fc8908c in libstdc++-6~_zst4cout ()     c:\windows\syswow64\libstdc++-6.dll #2   0x004013be in libstdc++-6~_zst4cout () @ helloworld.cpp:4 (gdb)

it should noted line 4 of class points cout call.

after looking @ gdb backtrace, problem appears incompatible c++ runtime libstdc++.dll.

this happen if you're installing mingw on existing install. way happen if other third party program needing libstdc++.dll installed dependencies windows\syswow64 found system wide. issue of course, differing versions of libstdc++ aren't compatible each other @ abi level. programs compiled given mingw g++ version needs load corresponding libstdc++.dll came particular mingw install.

open new cmd.exe prompt , set path environment current mingw\bin install directory. example, if mingw install in c:\mingw32-4.7.2:

c:\>set path=c:\mingw32-4.7.2\bin

then try running helloworld.exe again. if runs completion without crashing problem. in case should remove libstdc++.dll windows\syswow64.


Comments

Post a Comment

Popular posts from this blog

css - Which browser returns the correct result for getBoundingClientRect of an SVG element? -

-
this svg contains rect overflows svg element: <svg id='svg' width='10' height='10'> <rect x='-10' y='-10' width='30' height='30'/> </svg> chrome 28 , opera 12 return getboundingclientrect() svg element width , height of 10. firefox 23 reports width , height of 30. correct? jsfiddle the relevant spec cssom , delegates svg spec if svg element not "have associated css layout box". haven't found definition of "having associated css layout box", correct result seem hinge on definition, getbbox returns 30x30 rect in browsers. this firefox bug fixed now, fix in firefox nightlies , should make through firefox 33 released on 14 october 2014. see bug 530985 details.
Read more

gcc - Calling fftR4() in c from assembly -

-
i trying asm fft implementation www.embeddedsignals.com work. running make gives error: undefined reference fftr4(short*, short*, int) at top of asm have .syntax unified .thumb .global fftr4 .type fftr4, %function and there #define's associate c functions arguments registers followed macros fftr4 function uses. after that, fftr4 called .thumb_func fftr4: stmfd sp!, {r4-r11, lr} mov tmp0, #0 // bit reversed counter mov tmp1, #0 .word 0xf3a2fa92 //rbit r3,r2 //rbit r,n lsl r,#3 and c code follows: void fftr4(short *y, short *x, int n); short x[512]; short y[512]; int i; void loop() { (i=0;i<512;i++) x[i]=0; (i=0;i<512;i=i+8) { x[i+0]=16384; x[i+2]=16384; x[i+4]=-16384; x[i+6]=-16384;} fftr4(y, x, 256); serialusb.println(y[128]); serialusb.println(y[129]); serialusb.println(y[384]); serialusb.println(y[385]); // expected results: //y[128]is 8191; y[129] -8190 y[
Read more

Function that returns a formatted array in VBA -

-
i have function prints excel data text file in array format following: [ ['id', 'label', 'longitude', 'latitude', 'country', 'region', 'ttl_wt_flw_thru', 'sum-of-bol-wt', 'count of wdr_ref', 'ratio'], ['aeauh', 'abu dhabi, united arab emirates', 54.3666667, 24.4666667, 'ae', 'eame', 66, 30, 8432, 281.066666666667], ['aedxb', 'dubai, united arab emirates', 55.307485, 25.271139, 'ae', 'eame', 682, 3, 8369, 2789.66666666667] ] my code writing array is: function fillsourcearray() dim long, j long, s string dim lastrow double dim s1 string 'opens file filepath = filepath & "dataarray" & ".txt" open filepath output #1 'read source data dataarray = sheets("nodes").cells(1).currentregion.value 'determine lastrow lastrow = sheets("nodes").range
Read more