Borderou de evaluare (job #429046)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:18:44: error: call of overloaded ‘strchr(char&, int)’ is ambiguous user.cpp:18:44: note: candidates are: /usr/include/string.h:222:1: note: char* strchr(char*, int) <near match> /usr/include/string.h:222:1: note: no known conversion for argument 1 from ‘char’ to ‘char*’ /usr/include/string.h:228:1: note: const char* strchr(const char*, int) <near match> /usr/include/string.h:228:1: note: no known conversion for argument 1 from ‘char’ to ‘const char*’ user.cpp:8:13: warning: unused variable ‘v’ [-Wunused-variable]