Gdb Error Reading Variable
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C++ community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up gdb: with c++ vector up vote 1 down vote favorite I have
Cannot Access Memory At Address C
problem in accessing the memory for a std vector. I first define a struct (in the header file): typedef struct Systems { // other variables... vector sum; } System; I need an ensemble of system, and each vector sum must contain num doubles so, into the main, I write: System * system; system = (System*)malloc(DIM_ENSEMBLE*sizeof(System)); for (i =0; i< DIM_ENSEMBLE; i++) { //... system[i].part_sum.resize(num); //... } From this point argc= error reading variable cannot access memory at address as soon as I use System[0].part_sum[0] to initialize the vector I receive a segmentation fault program. If in the gdb i try to (gdb) print system[0].part_sum[0] I get: $2 = (double &) @0x200000003: I obtain the same error using reserve or allocator instead of resize. I also checked the capacity of the vector cout << system[0].part_sum.capacity(); and I sow that there is lot of space... What is happening? Is this a problem of memory management? A. c++ memory-management gdb stdvector share|improve this question asked Jun 27 '13 at 14:59 altroware 3081514 can you check the size of the vector? also what is the value of DIM_ENSEMBLE at that time? Also value of num? –Karthik T Jun 27 '13 at 15:01 off topic, but you dont need to do the typedef thing in c++ –Karthik T Jun 27 '13 at 15:03 5 You cannot construct an array of Systems with malloc. Just use an std::vector. –juanchopanza Jun 27 '13 at 15:03 @KarthikT Yes, I can check the size of the vector and it is ok (num). the value of DIM_ENSEMBLE is set to at the beginning 1 because I am at debugging stage. –altroware Jun 27 '13 at 15:05 1
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Cannot Access Memory At Address Gdb Core
Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like http://stackoverflow.com/questions/17346621/gdb-error-reading-variable-with-c-vector you, helping each other. Join them; it only takes a minute: Sign up Simple code cause error reading variable: Cannot access memory at address up vote 4 down vote favorite I am trying to use a python-enabled gdb MinGW-builds. And I run into an error. This is a rather simple code, and It works fine when debugging http://stackoverflow.com/questions/18295199/simple-code-cause-error-reading-variable-cannot-access-memory-at-address under MSVC. D:\CppProject\c1\bin\Debug>gdb c1.exe GNU gdb (GDB) 7.6 (copyright, license, bug report, etc omitted here) Reading symbols from D:\CppProject\c1\bin\Debug\c1.exe...done. (gdb) l 1 #include 2 #include 3 4 using namespace std; 5 6 int main() 7 { 8 vector v; 9 v.push_back("first"); 10 v.push_back("second"); (gdb) 11 cout< c++ debugging gdb share|improve this question edited Aug 18 '13 at 2:45 Shafik Yaghmour 101k19232330 asked Aug 18 '13 at 2:44 duleshi 7031925 1 Not sure if this has any effect at all, but you should #include –Colonel Panic Aug 18 '13 at 2:46 @ColonelPanic No difference, the gdb error still happened. &
Sign in Pricing Blog Support Search https://github.com/golang/go/issues/8546 GitHub This repository Watch 1,799 Star 21,159 Fork 2,773 golang/go Code Issues 2,570 Pull requests 1 Projects 0 Wiki Pulse Graphs New issue gdb: Gdb doesn't show strings values #8546 Open gopherbot opened this Issue Aug 18, 2014 · 1 cannot access comment Projects None yet Labels None yet Milestone Unplanned Assignees No one assigned 4 participants gopherbot commented Aug 18, 2014 by ignatovs: Mac OS X 10.9.4 What does 'go version' print? go version go1.3.1 darwin/amd64 (via brew) cannot access memory GNU gdb (GDB) 7.7.1 (via brew) Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later ; This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-apple-darwin13.3.0". Type "show configuration" for configuration details. For bug reporting instructions, please see: ;. Find the GDB manual and other documentation resources online at: ;. For help, type "help". Type "apropos word" to search for commands related to "word". (gdb) show configuration This GDB was configured as follows: configure --host=x86_64-apple-darwin13.3.0 --target=x86_64-apple-darwin13.3.0 --with-auto-load-dir=:${prefix}/share/auto-load --with-auto-load-safe-path=:${prefix}/share/auto-load --with-expat --with-gdb-datadir=/usr/local/Cellar/gdb/7.7.1/share/gdb (relocatable) --with-jit-reader-dir=/usr/local/Cellar/gdb/7.7.1/lib/gdb (relocatable) --without-libunwind-ia64 --without-lzma --with-python=/System/Library/Frameworks/Python.framework/Versions/2.7 --with-separate-debug-dir=/usr/local/Cellar/gdb/7.7.1/lib/debug (relocatable) --with-zlib --withou
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Cannot Access Memory At Address C
problem in accessing the memory for a std vector. I first define a struct (in the header file): typedef struct Systems { // other variables... vector
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Cannot Access Memory At Address Gdb Core
Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like http://stackoverflow.com/questions/17346621/gdb-error-reading-variable-with-c-vector you, helping each other. Join them; it only takes a minute: Sign up Simple code cause error reading variable: Cannot access memory at address up vote 4 down vote favorite I am trying to use a python-enabled gdb MinGW-builds. And I run into an error. This is a rather simple code, and It works fine when debugging http://stackoverflow.com/questions/18295199/simple-code-cause-error-reading-variable-cannot-access-memory-at-address under MSVC. D:\CppProject\c1\bin\Debug>gdb c1.exe GNU gdb (GDB) 7.6 (copyright, license, bug report, etc omitted here) Reading symbols from D:\CppProject\c1\bin\Debug\c1.exe...done. (gdb) l 1 #include
Sign in Pricing Blog Support Search https://github.com/golang/go/issues/8546 GitHub This repository Watch 1,799 Star 21,159 Fork 2,773 golang/go Code Issues 2,570 Pull requests 1 Projects 0 Wiki Pulse Graphs New issue gdb: Gdb doesn't show strings values #8546 Open gopherbot opened this Issue Aug 18, 2014 · 1 cannot access comment Projects None yet Labels None yet Milestone Unplanned Assignees No one assigned 4 participants gopherbot commented Aug 18, 2014 by ignatovs: Mac OS X 10.9.4 What does 'go version' print? go version go1.3.1 darwin/amd64 (via brew) cannot access memory GNU gdb (GDB) 7.7.1 (via brew) Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later