path: root/src/internal/stdio_impl.h
diff options
authorRich Felker <>2012-04-10 21:47:37 -0400
committerRich Felker <>2012-04-10 21:47:37 -0400
commit2162541f38d3f642f5a643010548d62220d55a4d (patch)
tree8ea23d95450312e95377b69da9b65baaa5bfdd90 /src/internal/stdio_impl.h
parent4fb6aa02c88a6b8b718c0ae982d072aa6ab8559f (diff)
add "scan helper getc" and rework strtod, etc. to use it
the immediate benefit is a significant debloating of the float parsing code by moving the responsibility for keeping track of the number of characters read to a different module. by linking shgetc with the stdio buffer logic, counting logic is defered to buffer refill time, keeping the calls to shgetc fast and light. in the future, shgetc will also be useful for integrating the new float code with scanf, which needs to not only count the characters consumed, but also limit the number of characters read based on field width specifiers. shgetc may also become a useful tool for simplifying the integer parsing code.
Diffstat (limited to 'src/internal/stdio_impl.h')
1 files changed, 2 insertions, 0 deletions
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
index c5f45eb1..5ec296f3 100644
--- a/src/internal/stdio_impl.h
+++ b/src/internal/stdio_impl.h
@@ -59,6 +59,8 @@ struct __FILE_s {
off_t off;
int (*flush)(FILE *);
void *mustbezero_2;
+ unsigned char *shend;
+ off_t shlim, shcnt;
size_t __stdio_read(FILE *, unsigned char *, size_t);