In this post, we will see how to resolve Dynamic array allocation – valgrind conditional jump Question: I am trying to read a line from stdin in C and at the same time dynamically allocate memory for the string using ...
In this post, we will see how to resolve Assign Valgrind’s report to a variable in bash script Question: I’m working on a test suite for programs written in C. For this I made a bash script in which I ...
In this post, we will see how to resolve Understanding uninitialised value(s) C Question: I was writing a tokenizer in C and although it works exactly as expected Valgrind throws uninitialized value(s) error. I’m perfectly aware of more than a ...
In this post, we will see how to resolve how to free memory in c in this context Question: context: Create a student record using structures and pointers in C language valgrind command output: If i PUT free(students[it]->name); In the ...
Question: I trying to follow the instruction on connecting to valgrind using gdb. Valgrind memcheck is starts properly and asks to connect using following gdb command: but when I run this command, I get an error Remote communication error. Target ...
Question: I want to run Valgrind in cp Linux command and watch the XML result of Valgrind. when I run the below command to get XML output, the exit code is 1. because Valgrind runs the cp command. I got ...
Question: glibc now uses SSE 4.2 to optimize strncmp: https://github.com/lattera/glibc/blob/master/sysdeps/x86_64/multiarch/strcmp-sse42.S https://www.strchr.com/strcmp_and_strlen_using_sse_4.2 This can be seen in a debugger: I’m not steeped in SSE 4.2 for strings, but my understanding is that it allows it to compare up to 16 bytes ...
Question: This code is missing a constructor initializer list: gcc compiles clean with no warnings: However, valgrind knows that the class member m wasn’t initialized: Why didn’t gcc warn about the missing initialization (-Wmissing-field-initializers or -Wuninitialized or -Wmaybe-uninitialized)? Is there ...
Question: I am using valgrind 3.15 and 3.17. I am running valgrind in a job in a gitlab-CI pipeline and I want the pipeline to fail, if there are any leaks or memory problems. I can show it on ls, ...