Table of Contentsatoi - convert a string to an integer. #include <stdlib.h>
int atoi(const char *nptr); The atoi() function converts the initial portion of the string pointed to by nptr to int. The behaviour is the same as strtol(nptr, (char **)NULL, 10);
except that atoi() does not detect errors.
The converted value. SVID 3, POSIX, BSD 4.3, ISO 9899 atof(3), atol(3), strtod(3), strtol(3), strtoul(3)
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