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/**
* @file util.c
* @author Gertjan van den Burg
* @date January, 2014
* @brief Utility functions
*
* @details
* This file contains several utility functions for coordinating input and
* output of data and model files. It also contains string functions.
*
*/
#include <stdarg.h>
#include "util.h"
FILE *MSVMMAJ_OUTPUT_FILE; ///< The #MSVMMAJ_OUTPUT_FILE specifies the
///< output stream to which all output is
///< written. This is done through the
///< internal (!)
///< function msvmmaj_print_string(). The
///< advantage of using a global output
///< stream variable is that the output can
///< temporarily be suppressed by importing
///< this variable through @c extern and
///< (temporarily) setting it to NULL.
/**
* @brief Check if any command line arguments contain string
*
* @details
* Check if any of a given array of command line arguments contains a given
* string. If the string is found, the index of the string in argv is
* returned. If the string is not found, 0 is returned.
*
* This function is copied from MSVMpack/libMSVM.c.
*
* @param[in] argc number of command line arguments
* @param[in] argv command line arguments
* @param[in] str string to find in the arguments
* @returns index of the string in the arguments if found, 0
* otherwise
*/
int msvmmaj_check_argv(int argc, char **argv, char *str)
{
int i;
int arg_str = 0;
for (i=1; i<argc; i++)
if (strstr(argv[i], str) != NULL) {
arg_str = i;
break;
}
return arg_str;
}
/**
* @brief Check if a command line argument equals a string
*
* @details
* Check if any of the command line arguments is exactly equal to a given
* string. If so, return the index of the corresponding command line argument.
* If not, return 0.
*
* This function is copied from MSVMpack/libMSVM.c
*
* @param[in] argc number of command line arguments
* @param[in] argv command line arguments
* @param[in] str string to find in the arguments
* @returns index of the command line argument that corresponds to
* the string, 0 if none matches.
*/
int msvmmaj_check_argv_eq(int argc, char **argv, char *str)
{
int i;
int arg_str = 0;
for (i=1; i<argc; i++)
if (strcmp(argv[i], str) == 0) {
arg_str = i;
break;
}
return arg_str;
}
/**
* @brief Print a given string to the specified output stream
*
* @details
* This function is used to print a given string to the output stream
* specified by #MSVMMAJ_OUTPUT_FILE. The stream is flushed after the string
* is written to the stream. If #MSVMMAJ_OUTPUT_FILE is NULL, nothing is
* written. Note that this function is only used by note(), it should never be
* used directly.
*
* @param[in] s string to write to the stream
*
*/
static void msvmmaj_print_string(const char *s)
{
if (MSVMMAJ_OUTPUT_FILE != NULL) {
fputs(s, MSVMMAJ_OUTPUT_FILE);
fflush(MSVMMAJ_OUTPUT_FILE);
}
}
/**
* @brief Parse a formatted string and write to the output stream
*
* @details
* This function is a replacement of fprintf(), such that the output stream
* does not have to be specified at each function call. The functionality is
* exactly the same however. Writing the formatted string to the output stream
* is handled by msvmmaj_print_string().
*
* @param[in] fmt String format
* @param[in] ... variable argument list for the string format
*
*/
void note(const char *fmt,...)
{
char buf[BUFSIZ];
va_list ap;
va_start(ap,fmt);
vsprintf(buf,fmt,ap);
va_end(ap);
(*msvmmaj_print_string)(buf);
}
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