atoi function

The C library function int atoi(const char *str) converts the string argument str to an integer (type int). If no valid conversion could be performed, it returns zero. In most implementations, pasing a null pointer will cause a segementation fault. ^ Replaced by strtol

Library:   stdlib.h

Prototype: int atoi(const char *str)



example program.

See also:

atof String to floating point conversion.
atol String to long integer conversion.
strtod String to double conversion.
strtol String to long integer conversion.
strtoul String to unsigned long integer conversion.

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Martin Leslie