Tagged Questions
0
votes
4answers
56 views
How is this c function decrementing my counter?
I have the following code:
int i;
for(i=0;i<2;i++) {
...
printf("i = %d\n",i);
rtdb_pull(rtdb, buf, &ncenter);
printf("i = %d\n",i);
...
}
When I run it, it goes through just fine ...
0
votes
1answer
48 views
Shakespearean Programming Language
To translate hello.spl to C, I run ./spl2c <hello.spl> hello.c which works fine. Next I run gcc hello.c, but I get "fatal error: spl.h: No such file or directory". spl.h and hello.c are in the ...
0
votes
0answers
36 views
Why does GCC take so much longer to build than llvm/clang?
This is a question about the process of building the compilers themselves. On my machine, compiling gcc (for C, C++, and objc) takes hours, while llvm + clang + clang++ is probably 10-20 minutes, ...
1
vote
2answers
65 views
How to enable the highest warning level in GCC compiler(Boost is heavily used)
I just read a book which recommends enable the highest warning level in GCC. I just check the doc online, and found there are too much parameters. I want to enable the highest warning level, which ...
1
vote
0answers
10 views
Data dependencies using gcc dump
I have some C/C++ code.
I want to get information about the data dependencies within a function e.g.
If there is a variable declared in line 1 and used in line 2 then i want to know this dependency.
...
2
votes
1answer
31 views
Compiling with both -g3 and -O3
Most build environments I've seen have at least two strategies: debug build vs final/optimized/release build. With gcc, this usually means some version of -g vs -O. Now I'm seeing a situation where ...
2
votes
1answer
102 views
How to ensure my code is ansi C, no C++ involved. Could compiler like gcc can be set to prompt error when meeting feature in C++?
I programmed C++ for a while.
Now I want to program a ANSI C program, don't want any "C++ only" feature in the code.
I'm using cygwin 64 bit with gcc installed.
Are there any settings to let gcc ...
-1
votes
1answer
33 views
Run exe file through Cygwin .error output :Segmentation fault(core dumped)
I am new with cygwin and C programm. I got a tough problem
#include <stdio.h>
#define N 10
int main()
{
int nPerson[N]={9,11,23,44,2,4,5,6,7,3};
int nFloor,nMinFloor,nTargetFloor;
...
2
votes
3answers
64 views
storage of bool in c under various compilers and optimization levels
trivial example program:
#include <stdio.h>
main()
{
bool tim = true;
bool rob = false;
bool mike = true;
printf("%d, %d, %d\n", tim, rob, mike);
}
Using the gcc compiler it ...
0
votes
2answers
29 views
Pack two binaries(executables) into one file
I have two binary(executable) files A and B. At runtime, A may call B depending on given parameters. Is it possible to pack the two binaries into one file? So that, when needed, A do not have to look ...
-3
votes
5answers
95 views
C++ default initialization of built-in types [closed]
Do all "real" C++ compilers don't have default initialization with zeros of built-in types? I'm asking 'cos I've found on-line compilers that is claimed to be gcc, and it does zero initialization of ...
-1
votes
2answers
29 views
Wrong common expression substitution in C compiler?
double *p;
Apparently, gcc 4.6.3 only increments p by 1 in the following line under -O3.
myfunc (*(p++), *(p++));
Is this a bug?
0
votes
1answer
39 views
How do I make the c++ compiler search for libraries in /usr/local/lib?
I am using clang on a Mac but I think this question will have the same answer for gcc (and any other unix system -- hopefully).
Right now, I can't link against libboost because it lives in ...
1
vote
1answer
29 views
netcat gcc compile option so that IDA pro can show function name
I want IDApro show functions name and variables, like: _readwrite, _dolisten but it only shows sub_40xxxx in function window.
How can I edit the compile option to achieve it?
The original Makefile ...
0
votes
1answer
37 views
Makefile C++11 - Compiling to static library
I am trying to compile my source files to a static library, however, it doesn't seem to want to work. Here is the code:
#-----------------------------------------------------------------------------
...
