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#include "Python.h"
#include "f2c.h"
/*
From the original manpage:
--------------------------
XERBLA is an error handler for the LAPACK routines.
It is called by an LAPACK routine if an input parameter has an invalid value.
A message is printed and execution stops.
Instead of printing a message and stopping the execution, a
ValueError is raised with the message.
Parameters:
-----------
srname: Subroutine name to use in error message, maximum six characters.
Spaces at the end are skipped.
info: Number of the invalid parameter.
*/
int xerbla_(char *srname, integer *info)
{
static const char format[] = "On entry to %.*s" \
" parameter number %d had an illegal value";
char buf[sizeof(format) + 6 + 4]; /* 6 for name, 4 for param. num. */
int len = 0; /* length of subroutine name*/
#ifdef WITH_THREAD
PyGILState_STATE save;
#endif
while( len<6 && srname[len]!='\0' )
len++;
while( len && srname[len-1]==' ' )
len--;
#ifdef WITH_THREAD
save = PyGILState_Ensure();
#endif
PyOS_snprintf(buf, sizeof(buf), format, len, srname, *info);
PyErr_SetString(PyExc_ValueError, buf);
#ifdef WITH_THREAD
PyGILState_Release(save);
#endif
return 0;
}
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