From dad40407705801c8bb597d5bc9a4eda562cae890 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 17 Apr 2012 22:05:51 -0400 Subject: [PATCH] fix failure to read infinity in scanf this code worked in strtod, but not in scanf. more evidence that i should design a better interface for discarding multiple tail characters than just calling unget repeatedly... --- src/internal/floatscan.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c index 377a008b..da209e27 100644 --- a/src/internal/floatscan.c +++ b/src/internal/floatscan.c @@ -428,9 +428,10 @@ long double __floatscan(FILE *f, int c, int prec, int pok) for (i=0; i<8 && (c|32)=="infinity"[i]; i++) if (i<7) c = shgetc(f); if (i==3 || i==8 || (i>3 && pok)) { - if (i==3) shunget(f); - if (pok) for (; i>3; i--) shunget(f); - else shlim(f, 0); + if (i!=8) { + shunget(f); + if (pok) for (; i>3; i--) shunget(f); + } return sign * INFINITY; } if (!i) for (i=0; i<3 && (c|32)=="nan"[i]; i++) -- 2.25.1