SomVprintf

This function prints a formatted string in the manner of the C vprintf function.

Syntax

string     fmt;
va_list    ap;
long       rc;

rc = somVprintf(fmt, ap);

Parameters

fmt(string)

The format string to be output.

ap (va_list)

A va_list representing the values to be substituted into the format string.

Return Code

rc (long)

Returns the number of characters written.

Remarks

This function prints a formatted string using SOMOutCharRoutine, in the same manner as the C vprintf function. The implementation of SOMOutCharRoutine determines the destination of the output, while the C printf function is always directed to stdout. (The default output destination for SOMOutCharRoutine is stdout also, but this can be modified by the user.)

Example Code

#include <som.h>
main()
{
   va_list args;
   somVaBuf vb;
   float f = 3.1415;
   char c = 'a';
   int one = 1;
   char *msg = "This is a test";

  somEnvironmentNew();  /* Init environment */
   vb = (somVaBuf)somVaBuf_create(NULL, 0);
   somVaBuf_add(vb, (char *)&one, tk_long);
   somVaBuf_add(vb, (char *)&f, tk_float);
   somVaBuf_add(vb, (char *)&c, tk_char);
   somVaBuf_add(vb, (char *)&msg, tk_pointer);
   somVaBuf_get_valist(vb, &args);

   somVprintf("%d, %f, %c, %s\n", args);
}

Related

Data Structures

• string (somcorba.h)
• va_list (stdarg.h)

Functions

• somPrintf
• somPrefixLevel
• somLPrintf
• SOMOutCharRoutine