From 18efeb320b763e541a7dbf61a7da1cbe13ab2be9 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 16 Apr 2012 16:03:45 -0400 Subject: new scanf implementation and corresponding integer parser/converter advantages over the old code: - correct results for floating point (old code was bogus) - wide/regular scanf separated so scanf does not pull in wide code - well-defined behavior on integers that overflow dest type - support for %[a-b] ranges with %[ (impl-defined by widely used) - no intermediate conversion of fmt string to wide string - cleaner, easier to share code with strto* functions - better standards conformance for corner cases the old code remains in the source tree, as the wide versions of the scanf-family functions are still using it. it will be removed when no longer needed. --- src/stdio/__string_read.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 src/stdio/__string_read.c (limited to 'src/stdio/__string_read.c') diff --git a/src/stdio/__string_read.c b/src/stdio/__string_read.c new file mode 100644 index 00000000..5c3728d7 --- /dev/null +++ b/src/stdio/__string_read.c @@ -0,0 +1,13 @@ +#include "stdio_impl.h" + +size_t __string_read(FILE *f, unsigned char *buf, size_t len) +{ + char *src = f->cookie; + size_t k = strnlen(src, len+256); + if (k < len) len = k; + memcpy(buf, src, len); + f->rpos = (void *)(src+len); + f->rend = (void *)(src+k); + f->cookie = src+k; + return len; +} -- cgit v1.2.1