diff options
Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c index d515b69..19d249d 100644 --- a/src/utils.c +++ b/src/utils.c @@ -53,6 +53,28 @@ parse_uint(char *string, char *arg) return (unsigned int)val; } +double +parse_double(char *string, char *arg) +{ + errno = 0; + char *endptr; + double val = strtod(string, &endptr); + if (errno != 0) { + char *errormsg; + asprintf(&errormsg, "parse_double: failed to parse %s", arg); + + perror(errormsg); + free(errormsg); + exit(-2); + } + + if (endptr == string) { + fprintf(stderr, "Valid %s not found\n", arg); + exit(-2); + } + return val; +} + bool parse_color(char *hex, Color *c, int a) { |