Implement libfonts_parse_double__ and last part of libfonts_get_output_rendering_settings (section aliases)

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 10 insertions, 3 deletions

diff --git a/libfonts_parse_double__.c b/libfonts_parse_double__.c
index 2fb182c..9aba573 100644
--- a/libfonts_parse_double__.c
+++ b/libfonts_parse_double__.c
@@ -6,9 +6,16 @@
 int
 libfonts_parse_double__(double *outp, const char *value)
 {
-	(void) outp;
-	(void) value;
-	return 0; /* TODO implement */
+	char *end;
+	int saved_errno = errno;
+	errno = 0;
+	*outp = strtod(value, &end);
+	if (errno || *end || isblank(*value)) {
+		errno = saved_errno;
+		return 0;
+	}
+	errno = saved_errno;
+	return 1;
 }