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Mark report_allocation_failure as noreturn

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Silence an static analyzer warning

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2018-12-25 04:11:29 +00:00
parent 1c0770dc66
commit 311fa65840
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GPG Key ID: 37C999F617EA1A47
1 changed files with 75 additions and 74 deletions
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149
src/utils.h
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@ -2,17 +2,17 @@
// Copyright (c) 2018 Yuxuan Shui <yshuiv7@gmail.com> // Copyright (c) 2018 Yuxuan Shui <yshuiv7@gmail.com>
#pragma once #pragma once
#include <ctype.h> #include <ctype.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <math.h> #include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h> #include <unistd.h>
#include "compiler.h" #include "compiler.h"
#define ARR_SIZE(arr) (sizeof(arr)/sizeof(arr[0])) #define ARR_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
#ifdef __FAST_MATH__ #ifdef __FAST_MATH__
#warning Use of -ffast-math can cause rendering error or artifacts, \ #warning Use of -ffast-math can cause rendering error or artifacts, \
@ -24,8 +24,9 @@ __attribute__((optnone))
#else #else
__attribute__((optimize("-fno-fast-math"))) __attribute__((optimize("-fno-fast-math")))
#endif #endif
static inline bool safe_isnan(double a) { static inline bool
return isnan(a); safe_isnan(double a) {
return isnan(a);
} }
/** /**
@ -36,43 +37,40 @@ static inline bool safe_isnan(double a) {
* @param max maximum value * @param max maximum value
* @return normalized value * @return normalized value
*/ */
static inline int attr_const static inline int attr_const normalize_i_range(int i, int min, int max) {
normalize_i_range(int i, int min, int max) { if (i > max)
if (i > max) return max; return max;
if (i < min) return min; if (i < min)
return i; return min;
return i;
} }
/** /**
* Select the larger integer of two. * Select the larger integer of two.
*/ */
static inline int attr_const static inline int attr_const max_i(int a, int b) {
max_i(int a, int b) { return (a > b ? a : b);
return (a > b ? a : b);
} }
/** /**
* Select the smaller integer of two. * Select the smaller integer of two.
*/ */
static inline int attr_const static inline int attr_const min_i(int a, int b) {
min_i(int a, int b) { return (a > b ? b : a);
return (a > b ? b : a);
} }
/** /**
* Select the larger long integer of two. * Select the larger long integer of two.
*/ */
static inline long attr_const static inline long attr_const max_l(long a, long b) {
max_l(long a, long b) { return (a > b ? a : b);
return (a > b ? a : b);
} }
/** /**
* Select the smaller long integer of two. * Select the smaller long integer of two.
*/ */
static inline long attr_const static inline long attr_const min_l(long a, long b) {
min_l(long a, long b) { return (a > b ? b : a);
return (a > b ? b : a);
} }
/** /**
@ -83,11 +81,12 @@ min_l(long a, long b) {
* @param max maximum value * @param max maximum value
* @return normalized value * @return normalized value
*/ */
static inline double attr_const static inline double attr_const normalize_d_range(double d, double min, double max) {
normalize_d_range(double d, double min, double max) { if (d > max)
if (d > max) return max; return max;
if (d < min) return min; if (d < min)
return d; return min;
return d;
} }
/** /**
@ -96,39 +95,39 @@ normalize_d_range(double d, double min, double max) {
* @param d double value to normalize * @param d double value to normalize
* @return normalized value * @return normalized value
*/ */
static inline double attr_const static inline double attr_const normalize_d(double d) {
normalize_d(double d) { return normalize_d_range(d, 0.0, 1.0);
return normalize_d_range(d, 0.0, 1.0);
} }
void report_allocation_failure(const char *func, const char *file, unsigned int line); void attr_noret report_allocation_failure(const char *func, const char *file,
unsigned int line);
/** /**
* @brief Quit if the passed-in pointer is empty. * @brief Quit if the passed-in pointer is empty.
*/ */
static inline void * static inline void *
allocchk_(const char *func_name, const char *file, unsigned int line, void *ptr) { allocchk_(const char *func_name, const char *file, unsigned int line, void *ptr) {
if (unlikely(!ptr)) { if (unlikely(!ptr)) {
report_allocation_failure(func_name, file, line); report_allocation_failure(func_name, file, line);
} }
return ptr; return ptr;
} }
/// @brief Wrapper of allocchk_(). /// @brief Wrapper of allocchk_().
#define allocchk(ptr) allocchk_(__func__, __FILE__, __LINE__, ptr) #define allocchk(ptr) allocchk_(__func__, __FILE__, __LINE__, ptr)
/// @brief Wrapper of malloc(). /// @brief Wrapper of malloc().
#define cmalloc(type) ((type *) allocchk(malloc(sizeof(type)))) #define cmalloc(type) ((type *)allocchk(malloc(sizeof(type))))
/// @brief Wrapper of malloc() that takes a size /// @brief Wrapper of malloc() that takes a size
#define cvalloc(size) allocchk(malloc(size)) #define cvalloc(size) allocchk(malloc(size))
/// @brief Wrapper of calloc(). /// @brief Wrapper of calloc().
#define ccalloc(nmemb, type) ((type *) allocchk(calloc((nmemb), sizeof(type)))) #define ccalloc(nmemb, type) ((type *)allocchk(calloc((nmemb), sizeof(type))))
/// @brief Wrapper of ealloc(). /// @brief Wrapper of ealloc().
#define crealloc(ptr, nmemb) \ #define crealloc(ptr, nmemb) \
((__typeof__(ptr)) allocchk(realloc((ptr), (nmemb) * sizeof(*(ptr))))) ((__typeof__(ptr))allocchk(realloc((ptr), (nmemb) * sizeof(*(ptr)))))
/// RC_TYPE generates a reference counted type from `type` /// RC_TYPE generates a reference counted type from `type`
/// ///
@ -148,38 +147,40 @@ allocchk_(const char *func_name, const char *file, unsigned int line, void *ptr)
/// reference to the object /// reference to the object
/// `name`_unref: decrement the reference counter. take a `type **` /// `name`_unref: decrement the reference counter. take a `type **`
/// because it needs to nullify the reference. /// because it needs to nullify the reference.
#define RC_TYPE(type, name, ctor, dtor, Q) \ #define RC_TYPE(type, name, ctor, dtor, Q) \
typedef struct { \ typedef struct { \
type inner; \ type inner; \
int ref_count; \ int ref_count; \
} name##_internal_t; \ } name##_internal_t; \
typedef type name##_t; \ typedef type name##_t; \
Q type *name##_new(void) { \ Q type *name##_new(void) { \
name##_internal_t *ret = cmalloc(name##_internal_t); \ name##_internal_t *ret = cmalloc(name##_internal_t); \
ctor((type *)ret); \ ctor((type *)ret); \
ret->ref_count = 1; \ ret->ref_count = 1; \
return (type *)ret; \ return (type *)ret; \
} \ } \
Q type *name##_ref(type *a) { \ Q type *name##_ref(type *a) { \
__auto_type b = (name##_internal_t *)a; \ __auto_type b = (name##_internal_t *)a; \
b->ref_count++; \ b->ref_count++; \
return a; \ return a; \
} \ } \
Q void name##_unref(type **a) { \ Q void name##_unref(type **a) { \
__auto_type b = (name##_internal_t *)*a; \ __auto_type b = (name##_internal_t *)*a; \
if (!b) \ if (!b) \
return; \ return; \
b->ref_count--; \ b->ref_count--; \
if (!b->ref_count) {\ if (!b->ref_count) { \
dtor((type *)b); \ dtor((type *)b); \
free(b); \ free(b); \
} \ } \
*a = NULL; \ *a = NULL; \
} }
/// Generate prototypes for functions generated by RC_TYPE /// Generate prototypes for functions generated by RC_TYPE
#define RC_TYPE_PROTO(type, name) \ #define RC_TYPE_PROTO(type, name) \
typedef type name##_t; \ typedef type name##_t; \
type *name##_new(void); \ type *name##_new(void); \
void name##_ref(type *a); \ void name##_ref(type *a); \
void name##_unref(type **a); void name##_unref(type **a);
// vim: set noet sw=8 ts=8 :