test/cfg: Improved testing of std.cfg and added more test cases.

cfg/std.cfg

@@ -874,7 +874,7 @@
   <!-- double fmax(double x, double y); -->
   <!-- float fmaxf(float x, float y); -->
   <!-- long double fmaxl(long double x, long double y); -->
-  <function name="fmax,fmaxf,fmaxl">
+  <function name="fmax,std::fmax,fmaxf,fmaxl">
     <use-retval/>
     <pure/>
     <noreturn>false</noreturn>
@@ -889,7 +889,7 @@
   <!-- double fmin(double x, double y); -->
   <!-- float fminf(float x, float y); -->
   <!-- long double fminl(long double x, long double y); -->
-  <function name="fmin,fminf,fminl">
+  <function name="fmin,std::fmin,fminf,fminl">
     <use-retval/>
     <pure/>
     <noreturn>false</noreturn>
@@ -904,7 +904,7 @@
   <!-- double fmod(double x, double y); -->
   <!-- float fmodf(float x, float y); -->
   <!-- long double fmodl(long double x, long double y); -->
-  <function name="fmod,fmodf,fmodl">
+  <function name="fmod,std::fmod,fmodf,fmodl">
     <use-retval/>
     <pure/>
     <noreturn>false</noreturn>

test/cfg/std.c

@@ -1181,6 +1181,51 @@ void uninitvar_fma(void)
     (void)fmal(ld1,ld2,ld3);
 }
 
+void uninitvar_fmax(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)fmaxf(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)fmax(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)fmaxl(ld1,ld2);
+}
+
+void uninitvar_fmin(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)fminf(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)fmin(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)fminl(ld1,ld2);
+}
+
+void uninitvar_fmod(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)fmodf(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)fmod(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)fmodl(ld1,ld2);
+}
+
 void ignoreretrn(void)
 {
     char szNumbers[] = "2001 60c0c0 -1101110100110100100000 0x6fffff";

test/cfg/std.cpp

@@ -704,3 +704,47 @@ void uninitvar_fma(void)
     (void)std::fma(ld1,ld2,ld3);
 }
 
+void uninitvar_fmax(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmax(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmax(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmax(ld1,ld2);
+}
+
+void uninitvar_fmin(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmin(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmin(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmin(ld1,ld2);
+}
+
+void uninitvar_fmod(void)
+{
+    float f1,f2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmod(f1,f2);
+
+    double d1,d2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmod(d1,d2);
+
+    long double ld1,ld2;
+    // cppcheck-suppress uninitvar
+    (void)std::fmod(ld1,ld2);
+}