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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 29 |
1 files changed, 29 insertions, 0 deletions
@@ -1,5 +1,34 @@ * What's new in version 0.6 / 0.6.1 +- There is a new format specifier, %m, for the printf family of + functions. It functions like %s, except that it does not stop when + a nul ('\0') byte is encountered. The number of bytes output is + determined by the precision specifier. The default precision is 1. + For example: + + printf ("%m", "My String") // prints one character: M + printf ("%.5", myString) // prints 5 bytes beginning at the start + // of myString + +- The %b format specifier for the printf family of functions has been enhanced + as follows: + + 1) When the width and precision are both unspecified, the default is %8.8b. + 2) When only one of the width or precision is specified, the other defaults + to the same value. For example, %4b == %.4b == %4.4b + 3) Nul ('\0') bytes are used for field width padding. For example, + + printf ("%b", 0x1111deadbeef2222) // prints all eight bytes + printf ("%4.2b", 0xdeadbeef) // prints \0\0\xbe\xef + +- Dynamic width and precision are now supported for all printf family format + specifiers. For example: + + four = 4 + two = 2 + printf ("%*.*b", four, two, 0xdeadbbeef) // prints \0\0\xbe\xef + printf ("%*d", four, two) // prints <space><space><space>2 + - Preprocessor conditional expressions can now include wildcard style matches on kernel versions. %( kernel_vr != "*xen" %? foo %: bar %) |