C++ Programming/Code/Standard C Library/Functions/strspn

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strspn[edit | edit source]

#include <cstring>
size_t strspn( const char *str1, const char *str2 );

The strspn() function returns the index of the first character in str1 that doesn't match any character in str2.

Related topics
strchr - strpbrk - strrchr - strstr - strtok