converting float to char*

Question

Hi,

How can i convert a float value to char* in C language

Answer 1

char array[10];
sprintf(array, "%f", 3.123);

sprintf: (from MSDN)

Answer 2

sprintf(myCharPointer, "%f", myFloat);

That will store the string representation of myFloat in myCharPointer. Make sure that the string is large enough to hold it, though.

Edit: thanks to JeremyP, snprintf is a better option as you can specify the char pointer's size as an argument after the pointer is passed so that an overflow is prevented.

Answer 3

char* str=NULL;
int len = asprintf(&str, "%g", float_var);
if (len == -1)
  fprintf(stderr, "Error converting float: %m\n");
else
  printf("float is %s\n", str);
free(str);

Answer 4

char array[10];
snprintf(array, sizeof(array), "%f", 3.333333);