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Code Block

bgColor	#ccccff
lang	c

#include <stdio.h>
 
void func(const char *name) {
  char filename[128];
  sprintf(filename, "%.123s.txt", name);
}

You can also use * to indicate that the precision should be provided as a variadic argument:

Code Block

bgColor	#ccccff
lang	c

#include <stdio.h>
 
void func(const char *name) {
  char filename[128];
  sprintf(filename, "%.*s.txt", sizeof(filename) - 5, name);
}

Compliant Solution (`snprintf()`)

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