Programming-Idioms

Edit summary for version 39 by :
[Cpp] cstdlib C++ standard header file is preferred

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2016-02-16, 16:44:42

2016-02-16, 16:56:53

Idiom #22 Convert string to integer

Extract integer value i from its string representation s (in radix 10)

Extract integer value i from its string representation s (in radix 10)

#include <stdlib.h>

#include <cstdlib>

int i = atoi(s);

int i = std::atoi(s);

s is a char*

s is a char*

http://en.cppreference.com/w/cpp/string/byte/atoi

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