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Results for “extra”

Small, practical examples. Search by task or narrow things down below.

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CArrays

Count matching values

Count even numbers in a fixed C array.

C✓ Tested
CFiles

Count newline characters

Count newline bytes in a C file while retaining EOF as an int.

C✓ Tested
C++Ordering & set operations

Count occurrences in a sorted sequence

C++: equal_range finds the half-open interval containing values equal to the key.

C++✓ Tested
CSmall algorithms & bit operations

Count set bits in an unsigned integer

C: Clearing the lowest set bit on each iteration counts only one iteration per set bit.

C✓ Tested
C++Getting Started

Count the items in a collection

C++: Read the collection’s length instead of hard-coding the loop limit.

C++✓ Tested
CGetting Started

Count the items in a collection

C: Read the collection’s length instead of hard-coding the loop limit.

C✓ Tested
C++Collections

Count word frequencies

Accumulate word counts in an ordered C++ map.

C++✓ Tested
CDynamic memory & ownership

Create an independent copy of a byte buffer

C: Allocate the exact byte length and copy only after checking the result.

C✓ Tested
C++Files & paths

Create nested directories

Use C++17 filesystem to create a directory tree.

C++✓ Tested
CBinary formats & structured parsing

Decode a 16-bit big-endian integer

C: Promote bytes to an unsigned integer type before combining shifted values.

C✓ Tested
CBinary formats & structured parsing

Decode a validated pair of hexadecimal digits

C: Convert each nibble and reject a nonhexadecimal character before combining them.

C✓ Tested
C++Filesystem operations

Delete one known scratch file

C++: filesystem::remove reports whether an item was removed and also supports empty directories.

C++✓ Tested