I am having problem comparing an int value and a char value in C. Lets say I variable int value1 that is 0 and a char that has value '0'. I know that that char's value is actually an ascii number and that '0' is 48, but how do I compare int's 0 value with chars '0' value, in an if statement as a example?
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"is actually an ascii number" - not necessarily. – Bathsheba Sep 27 '17 at 11:53
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`if(int_value == char_value - '0')` – BLUEPIXY Sep 27 '17 at 11:55
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You should also cast the result (int)(char_value - '0') or the compiler will issue warnings. – SPlatten Sep 27 '17 at 11:58
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You can use the idiom c - '0' to convert a char c to its equivalent digit.
This is an expression of type int.
Note that it works in any character encoding supported by the C Standard, since such an encoding must order 0 to 9 consecutively.
Bathsheba
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