don't declare functions with side effect as pure

p99/p99_map.h

@@ -109,7 +109,6 @@ p00_strcat_state* p00_strcat(p00_strcat_state *restrict p00_des, char const*rest
   return p00_des;
 }
 
-P99_PURE_FUNCTION
 p99_inline
 char* p00_strcat_terminate(p00_strcat_state *restrict p00_des) {
   return p00_des->p00_buf;

p99/p99_try.h

@@ -265,7 +265,6 @@ do {                                                           \
  } while(0)
 #endif
 
-P99_PURE_FUNCTION
 p99_inline
 int p00_throw_call_zero(int p00_err,
                         errno_t p00_def,
@@ -326,7 +325,6 @@ p00_throw_call_zero(F(__VA_ARGS__), E, p00_unwind_top, P99_STRINGIFY(__LINE__),
 #define P99_THROW_CALL_NOT_ZERO(F, E, ...)                                                                     \
 p00_throw_call_zero(!F(__VA_ARGS__), E, p00_unwind_top, P99_STRINGIFY(__LINE__), __func__, #F ", zero return")
 
-P99_PURE_FUNCTION
 p99_inline
 int p00_throw_call_thrd(int p00_err,
                         p00_jmp_buf0 * p00_top,
@@ -362,7 +360,6 @@ int p00_throw_call_thrd(int p00_err,
 #define P99_THROW_CALL_THRD(F, ...)                                                                            \
 p00_throw_call_thrd(F(__VA_ARGS__), p00_unwind_top, P99_STRINGIFY(__LINE__), __func__, #F ", no thrd_success")
 
-P99_PURE_FUNCTION
 p99_inline
 int p00_throw_call_neg(int p00_neg,
                        errno_t p00_def,
@@ -398,7 +395,6 @@ p00_throw_call_neg(F(__VA_ARGS__), E, p00_unwind_top, P99_STRINGIFY(__LINE__), _
  **/
 #define P99_THROW_CALL_NEG(F, E, ...) P00_THROW_CALL_NEG(F, E, __VA_ARGS__)
 
-P99_PURE_FUNCTION
 p99_inline
 int p00_throw_call_negate(int p00_neg,
                           errno_t p00_def,
@@ -440,7 +436,6 @@ p00_throw_call_negate(F(__VA_ARGS__), E, p00_unwind_top, P99_STRINGIFY(__LINE__)
  **/
 #define P99_THROW_CALL_NEGATE(F, E, ...) P00_THROW_CALL_NEGATE(F, E, __VA_ARGS__)
 
-P99_PURE_FUNCTION
 p99_inline
 void* p00_throw_call_voidp(void* p00_p,
                            errno_t p00_def,