Updated: April 19, 2023 |
Convert an unsigned integer into a string, using a given base
#include <stdlib.h> char* utoa( unsigned int value, char* buffer, int radix );
8 × sizeof( int ) + 1
bytes when converting values in base 2 (binary).
2 <= radix <= 36
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The utoa() function converts the unsigned binary integer value into the equivalent string in base radix notation, storing the result in the character array pointed to by buffer. A null character is appended to the result.
A pointer to the result, or NULL if an error occurs (errno is set).
#include <stdio.h> #include <stdlib.h> int main( void ) { int base; char buffer[18]; for( base = 2; base <= 16; base = base + 2 ) printf( "%2d %s\n", base, utoa( (unsigned) 12765, buffer, base ) ); return EXIT_SUCCESS; }
produces the output:
2 11000111011101 4 3013131 6 135033 8 30735 10 12765 12 7479 14 491b 16 31dd
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |