# Extra Clang Tools 21.1.8 documentation

## clang-tidy - abseil-faster-strsplit-delimiter

# abseil-faster-strsplit-delimiter

Finds instances of `absl::StrSplit()` or `absl::MaxSplits()` where the delimiter is a single character string literal and replaces with a character. The check will offer a suggestion to change the string literal into a character. It will also catch code using `absl::ByAnyChar()` for just a single character and will transform that into a single character as well.

These changes will give the same result, but using characters rather than single character string literals is more efficient and readable.

Examples:

    // Original - the argument is a string literal.
    for (auto piece : absl::StrSplit(str, "B")) {

    // Suggested - the argument is a character, which causes the more efficient
    // overload of absl::StrSplit() to be used.
    for (auto piece : absl::StrSplit(str, 'B')) {

    // Original - the argument is a string literal inside absl::ByAnyChar call.
    for (auto piece : absl::StrSplit(str, absl::ByAnyChar("B"))) {

    // Suggested - the argument is a character, which causes the more efficient
    // overload of absl::StrSplit() to be used and we do not need absl::ByAnyChar
    // anymore.
    for (auto piece : absl::StrSplit(str, 'B')) {

    // Original - the argument is a string literal inside absl::MaxSplits call.
    for (auto piece : absl::StrSplit(str, absl::MaxSplits("B", 1))) {

    // Suggested - the argument is a character, which causes the more efficient
    // overload of absl::StrSplit() to be used.
    for (auto piece : absl::StrSplit(str, absl::MaxSplits('B', 1))) {