strtol() function in c

What is strtol in c?

strtol converts the initial part of the given string to long int value according to the base value.

The base value must be within 2 to 36.

It is defined in stdlib.h header file.

Prototype

long int strtol(const char*string,char **endpointer,int base);

Return value

The function returns converted long int value else zero is returned.

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Example program for strtol() in c

#include<stdio.h>
#include<stdlib.h>
int main()
{
 char string[30]=" 40.30   scholarsoul";
  char *pointer;
  double res;
  res=strtol(string,&pointer,10);
  printf("The number is:%lf and string is:%s \n",res,pointer);
  return 0;
}

Output

 ./a.out 
The number is:40.000000 and string is:.30   scholarsoul 

Code explanantion

It converts the initial part of the given string to long int value according to the base value.

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