1*89a1d03eSRichard // RUN: %check_clang_tidy %s cert-err34-c %t
2*89a1d03eSRichard
3*89a1d03eSRichard typedef void * FILE;
4*89a1d03eSRichard
5*89a1d03eSRichard extern FILE *stdin;
6*89a1d03eSRichard
7*89a1d03eSRichard extern int fscanf(FILE * stream, const char * format, ...);
8*89a1d03eSRichard extern int sscanf(const char * s, const char * format, ...);
9*89a1d03eSRichard
10*89a1d03eSRichard extern double atof(const char *nptr);
11*89a1d03eSRichard extern int atoi(const char *nptr);
12*89a1d03eSRichard extern long int atol(const char *nptr);
13*89a1d03eSRichard extern long long int atoll(const char *nptr);
14*89a1d03eSRichard
15*89a1d03eSRichard namespace std {
16*89a1d03eSRichard using ::FILE; using ::stdin;
17*89a1d03eSRichard using ::fscanf; using ::sscanf;
18*89a1d03eSRichard using ::atof; using ::atoi; using ::atol; using ::atoll;
19*89a1d03eSRichard }
20*89a1d03eSRichard
f1(const char * in)21*89a1d03eSRichard void f1(const char *in) {
22*89a1d03eSRichard int i;
23*89a1d03eSRichard long long ll;
24*89a1d03eSRichard
25*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'sscanf' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
26*89a1d03eSRichard std::sscanf(in, "%d", &i);
27*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: 'fscanf' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtoll' instead [cert-err34-c]
28*89a1d03eSRichard std::fscanf(std::stdin, "%lld", &ll);
29*89a1d03eSRichard }
30*89a1d03eSRichard
f2(const char * in)31*89a1d03eSRichard void f2(const char *in) {
32*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:11: warning: 'atoi' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
33*89a1d03eSRichard int i = std::atoi(in); // to int
34*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:12: warning: 'atol' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtol' instead [cert-err34-c]
35*89a1d03eSRichard long l = std::atol(in); // to long
36*89a1d03eSRichard
37*89a1d03eSRichard using namespace std;
38*89a1d03eSRichard
39*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:18: warning: 'atoll' used to convert a string to an integer value, but function will not report conversion errors; consider using 'strtoll' instead [cert-err34-c]
40*89a1d03eSRichard long long ll = atoll(in); // to long long
41*89a1d03eSRichard // CHECK-MESSAGES: :[[@LINE+1]]:14: warning: 'atof' used to convert a string to a floating-point value, but function will not report conversion errors; consider using 'strtod' instead [cert-err34-c]
42*89a1d03eSRichard double d = atof(in); // to double
43*89a1d03eSRichard }
44