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Is there a limit for a code line length in C?
Post 302431669 by alex_5161 on Tuesday 22nd of June 2010 01:32:07 PM
06-22-2010
Quote:
- just kidding..Appreciate you oppinion!
---------- Post updated at 12:32 PM ---------- Previous update was at 11:46 AM ----------
Quote:
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What you're describing sounds more like a buffer overflow. Writing past the end of an array on the stack can mangle other local variables, causing behavior like you describe. Moving around lines of code may change what gets mangled or at least when, changing the behavior.
What you're describing sounds more like a buffer overflow. Writing past the end of an array on the stack can mangle other local variables, causing behavior like you describe. Moving around lines of code may change what gets mangled or at least when, changing the behavior.
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mpi_sizeof
MPI_Sizeof(3OpenMPI) MPI_Sizeof(3OpenMPI) NAME
MPI_Sizeof - Returns the size, in bytes, of the given type SYNTAX
Fortran Syntax INCLUDE 'mpif.h' MPI_SIZEOF(X, SIZE, IERROR) <type> X INTEGER SIZE, IERROR INPUT PARAMETER
X A Fortran variable of numeric intrisic type (choice). OUTPUT PARAMETERS
SIZE Size of machine representation of that type (integer). IERROR Error status (integer). DESCRIPTION
MPI_SIZEOF returns the size (in bytes) of the machine representation of the given variable. It is a generic Fortran type and has a Fortran binding only. This routine is similar to the sizeof builtin in C/C++. However, if given an array argument, it returns the size of the base element, not the size of the whole array. NOTES
This function is not available in C/C++ because it is not necessary. ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func- tions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. See the MPI man page for a full list of MPI error codes. Open MPI 1.2 September 2006 MPI_Sizeof(3OpenMPI)