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Editorial Team
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Asked: 2026-06-02T20:04:59+00:00

I have a variable named String that may have values like the following ones:

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I have a variable named “String” that may have values like the following ones:

const char* String = "/v1/AUTH_abb52a71-fc76-489b-b56b-732b66bf50b1/test/DSC_0188.JPG";

or

const char* String = "/auth/v1.0";

or 

const char* String = "/v2/AUTH_abb52a71-fc76-489b-b56b-732b66bf50b1/images?limit=1000&delimiter=/&format=xml";

Now I want to make sure whether or not “String” has the character ‘v1’. Checking this has to be precise. I tried with strchr, but it’s not quite accurate as it doesn’t take ‘v1’ as one character, it rather takes ‘v’ and ‘1’ as two separate characters. Moreover I can’t use namepace std and library string, I can only use “string.h”. Within these limitations how can I accurately check whether the variable “String” has a character ‘v1’?

Thank you.

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1 Answer

  1. Editorial Team

    I want to make sure whether or not “String” has the character ‘v1’

    I can only use “string.h”

    Then you probably want strstr. Also v1 is not a character, it’s a string.

    Side note: why use cstring in C++ ? What kind of teacher is still calling it string.h ?!

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