ATOI (3) | C library functions | Unix Manual Pages



ATOI (3) \| C library functions \| Unix Manual Pages \| :man▋ NAME atoi - convert ASCII string to integer CONTENTS Library Synopsis Description Implementation Notes Errors See Also Standards LIBRARY .Lb libc SYNOPSIS .In stdlib.h int `atoi "const char nptr"` DESCRIPTION The `atoi` function converts the initial portion of the string pointed to by nptr* to .Vt int representation. It is equivalent to: (int)strtol(nptr, (char *)NULL, 10); IMPLEMENTATION NOTES The `atoi` function is not thread-safe and also not async-cancel safe. The `atoi` function has been deprecated by `strtol` and should not be used in new code. ERRORS The function `atoi` need not affect the value of errno* on an error. SEE ALSO atof(3), atol(3), strtod(3), strtol(3), strtoul(3) STANDARDS

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