diff options
Diffstat (limited to 'examples/c/calc')
| -rw-r--r-- | examples/c/calc/calc.y | 6 | ||||
| -rw-r--r-- | examples/c/calc/local.mk | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/examples/c/calc/calc.y b/examples/c/calc/calc.y index 7757648d..97e352a0 100644 --- a/examples/c/calc/calc.y +++ b/examples/c/calc/calc.y @@ -1,6 +1,7 @@ %code top { #include <ctype.h> /* isdigit. */ - #include <stdio.h> /* For printf, etc. */ + #include <stdio.h> /* printf. */ + #include <stdlib.h> /* abort. */ #include <string.h> /* strcmp. */ int yylex (void); @@ -73,7 +74,8 @@ yylex (void) if (c == '.' || isdigit (c)) { ungetc (c, stdin); - scanf ("%lf", &yylval.NUM); + if (scanf ("%lf", &yylval.NUM) != 1) + abort (); return NUM; } diff --git a/examples/c/calc/local.mk b/examples/c/calc/local.mk index 14b78f3b..503b034a 100644 --- a/examples/c/calc/local.mk +++ b/examples/c/calc/local.mk @@ -27,6 +27,7 @@ nodist_%C%_calc_SOURCES = %D%/calc.y # Don't use gnulib's system headers. %C%_calc_CPPFLAGS = -I$(top_srcdir)/%D% -I$(top_builddir)/%D% +%C%_calc_CFLAGS = $(TEST_CFLAGS) dist_calc_DATA = %D%/calc.y %D%/Makefile %D%/README.md CLEANFILES += %D%/calc.[ch] %D%/calc.output %D%/scan.c |