The "C language" writes a function that converts a numeric string to a number corresponding to that string (including positive integers, negative integers)

/* Write a function that converts a numeric string to a number corresponding to the string (including positive integers, negative integers) For example: "  12" returns-123 "return-123 function prototype: int my_atof (char *str) */#include < Stdio.h>int My_atof (char *str) {int flag=0;int m=0;if (*str== '-') {flag=1;str++;} while (*str!= ') {if (*str< ' 0 ' | | *str > ' 9 ') return 0;m*=10;m+=*str-' 0 '; str++;} if (flag==0) return M;elsereturn m*-1;} int main () {char s[100]={0};scanf ("%s", s);p rintf ("%d\n", My_atof (s)); return 0;}

The "C language" writes a function that converts a numeric string to a number corresponding to that string (including positive integers, negative integers)