diff --git a/ChangeLog b/ChangeLog
index 0d753b8..73a6786 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@
 
 	* include/kernaux/printf_fmt.h: Auxiliary API moved to a separate module
 	* include/kernaux/printf_fmt.h: Add function to parse type
+	* include/kernaux/printf_fmt.h: Don't pass unnecessary format param
 
 2022-05-24  Alex Kotov  <kotovalexarian@gmail.com>
 
diff --git a/examples/printf_fmt.c b/examples/printf_fmt.c
index 252abbb..a19502c 100644
--- a/examples/printf_fmt.c
+++ b/examples/printf_fmt.c
@@ -10,10 +10,10 @@ int main()
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
         KernAux_PrintfFmt_Spec_eval_flags(&spec, &format);
         if (KernAux_PrintfFmt_Spec_eval_width1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_width2(&spec, &format, 0);
+            KernAux_PrintfFmt_Spec_eval_width2(&spec, 0);
         }
         if (KernAux_PrintfFmt_Spec_eval_precision1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_precision2(&spec, &format, 0);
+            KernAux_PrintfFmt_Spec_eval_precision2(&spec, 0);
         }
         KernAux_PrintfFmt_Spec_eval_length(&spec, &format);
         KernAux_PrintfFmt_Spec_eval_type(&spec, &format);
@@ -37,10 +37,10 @@ int main()
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
         KernAux_PrintfFmt_Spec_eval_flags(&spec, &format);
         if (KernAux_PrintfFmt_Spec_eval_width1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_width2(&spec, &format, 12);
+            KernAux_PrintfFmt_Spec_eval_width2(&spec, 12);
         }
         if (KernAux_PrintfFmt_Spec_eval_precision1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_precision2(&spec, &format, 34);
+            KernAux_PrintfFmt_Spec_eval_precision2(&spec, 34);
         }
         KernAux_PrintfFmt_Spec_eval_length(&spec, &format);
         KernAux_PrintfFmt_Spec_eval_type(&spec, &format);
diff --git a/include/kernaux/printf_fmt.h b/include/kernaux/printf_fmt.h
index d3cc761..e1a01fd 100644
--- a/include/kernaux/printf_fmt.h
+++ b/include/kernaux/printf_fmt.h
@@ -48,9 +48,9 @@ void KernAux_PrintfFmt_Spec_init(struct KernAux_PrintfFmt_Spec *spec);
 
 void KernAux_PrintfFmt_Spec_eval_flags(struct KernAux_PrintfFmt_Spec *spec, const char **format);
 bool KernAux_PrintfFmt_Spec_eval_width1(struct KernAux_PrintfFmt_Spec *spec, const char **format);
-void KernAux_PrintfFmt_Spec_eval_width2(struct KernAux_PrintfFmt_Spec *spec, const char **format, int width);
+void KernAux_PrintfFmt_Spec_eval_width2(struct KernAux_PrintfFmt_Spec *spec, int width);
 bool KernAux_PrintfFmt_Spec_eval_precision1(struct KernAux_PrintfFmt_Spec *spec, const char **format);
-void KernAux_PrintfFmt_Spec_eval_precision2(struct KernAux_PrintfFmt_Spec *spec, const char **format, int precision);
+void KernAux_PrintfFmt_Spec_eval_precision2(struct KernAux_PrintfFmt_Spec *spec, int precision);
 void KernAux_PrintfFmt_Spec_eval_length(struct KernAux_PrintfFmt_Spec *spec, const char **format);
 void KernAux_PrintfFmt_Spec_eval_type(struct KernAux_PrintfFmt_Spec *spec, const char **format);
 
diff --git a/src/printf.c b/src/printf.c
index fbf3646..e2a3fa0 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -156,11 +156,11 @@ int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char*
         KernAux_PrintfFmt_Spec_eval_flags(&spec, &format);
 
         if (KernAux_PrintfFmt_Spec_eval_width1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_width2(&spec, &format, va_arg(va, int));
+            KernAux_PrintfFmt_Spec_eval_width2(&spec, va_arg(va, int));
         }
 
         if (KernAux_PrintfFmt_Spec_eval_precision1(&spec, &format)) {
-            KernAux_PrintfFmt_Spec_eval_precision2(&spec, &format, va_arg(va, int));
+            KernAux_PrintfFmt_Spec_eval_precision2(&spec, va_arg(va, int));
         }
 
         KernAux_PrintfFmt_Spec_eval_length(&spec, &format);
diff --git a/src/printf_fmt.c b/src/printf_fmt.c
index f23be06..fc4a88b 100644
--- a/src/printf_fmt.c
+++ b/src/printf_fmt.c
@@ -63,16 +63,17 @@ bool KernAux_PrintfFmt_Spec_eval_width1(struct KernAux_PrintfFmt_Spec *const spe
     if (isdigit(**format)) {
         spec->width = _atoi(format);
         return false;
+    } else if (**format == '*') {
+        ++(*format);
+        return true;
     } else {
-        return **format == '*';
+        return false;
     }
 }
 
-void KernAux_PrintfFmt_Spec_eval_width2(struct KernAux_PrintfFmt_Spec *const spec, const char **const format, const int width)
+void KernAux_PrintfFmt_Spec_eval_width2(struct KernAux_PrintfFmt_Spec *const spec, const int width)
 {
     KERNAUX_NOTNULL_RETURN(spec);
-    KERNAUX_NOTNULL_RETURN(format);
-    KERNAUX_NOTNULL_RETURN(*format);
 
     if (width < 0) {
         spec->flags |= KERNAUX_PRINTF_FMT_FLAGS_LEFT; // reverse padding
@@ -80,8 +81,6 @@ void KernAux_PrintfFmt_Spec_eval_width2(struct KernAux_PrintfFmt_Spec *const spe
     } else {
         spec->width = (unsigned int)width;
     }
-
-    ++(*format);
 }
 
 bool KernAux_PrintfFmt_Spec_eval_precision1(struct KernAux_PrintfFmt_Spec *const spec, const char **const format)
@@ -96,22 +95,22 @@ bool KernAux_PrintfFmt_Spec_eval_precision1(struct KernAux_PrintfFmt_Spec *const
         if (isdigit(**format)) {
             spec->precision = _atoi(format);
             return false;
+        } else if (**format == '*') {
+            ++(*format);
+            return true;
         } else {
-            return **format == '*';
+            return false;
         }
     } else {
         return false;
     }
 }
 
-void KernAux_PrintfFmt_Spec_eval_precision2(struct KernAux_PrintfFmt_Spec *const spec, const char **const format, const int precision)
+void KernAux_PrintfFmt_Spec_eval_precision2(struct KernAux_PrintfFmt_Spec *const spec, const int precision)
 {
     KERNAUX_NOTNULL_RETURN(spec);
-    KERNAUX_NOTNULL_RETURN(format);
-    KERNAUX_NOTNULL_RETURN(*format);
 
     spec->precision = precision > 0 ? (unsigned int)precision : 0u;
-    ++(*format);
 }
 
 void KernAux_PrintfFmt_Spec_eval_length(struct KernAux_PrintfFmt_Spec *const spec, const char **const format)