- The C Standard Library
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C Library - h - The setjmp.h header defines the macro setjmp, one function longjmp, and one variable type jmpbuf, for bypassing the normal function call and return discipl. I have a C program that will not compile under OS X 10.8.5 with the g compiler. The problem seems to be with the math.h header file. This is the version of g is g -v Using built-in specs.
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The setjmp.h header defines the macro setjmp(), one function longjmp(), and one variable type jmp_buf, for bypassing the normal function call and return discipline.
Library Variables
Following is the variable type defined in the header setjmp.h −
Sr.No. | Variable & Description |
---|---|
1 | jmp_buf This is an array type used for holding information for macro setjmp() and function longjmp(). |
Library Macros
There is only one macro defined in this library −
Sr.No. | Macro & Description |
---|---|
1 | int setjmp(jmp_buf environment) This macro saves the current environment into the variable environment for later use by the function longjmp(). If this macro returns directly from the macro invocation, it returns zero but if it returns from a longjmp() function call, then a non-zero value is returned. |
Library Functions
Following is the only one function defined in the header setjmp.h −
C Language Math Library
Sr.No. | Function & Description |
---|---|
1 | void longjmp(jmp_buf environment, int value) This function restores the environment saved by the most recent call to setjmp() macro in the same invocation of the program with the corresponding jmp_buf argument. |
- The C Standard Library
- C Standard Library Resources
- C Programming Resources
- Selected Reading
The math.h header defines various mathematical functions and one macro. All the functions available in this library take double as an argument and return double as the result.
Library Macros
C Programming Math Library
There is only one macro defined in this library −
Sr.No. | Macro & Description |
---|---|
1 | HUGE_VAL This macro is used when the result of a function may not be representable as a floating point number. If magnitude of the correct result is too large to be represented, the function sets errno to ERANGE to indicate a range error, and returns a particular, very large value named by the macro HUGE_VAL or its negation (- HUGE_VAL). If the magnitude of the result is too small, a value of zero is returned instead. In this case, errno might or might not be set to ERANGE. |
Library Functions
Following are the functions defined in the header math.h −
Sr.No. | Function & Description |
---|---|
1 | double acos(double x) Returns the arc cosine of x in radians. |
2 | double asin(double x) Returns the arc sine of x in radians. |
3 | double atan(double x) Returns the arc tangent of x in radians. |
4 | double atan2(double y, double x) Returns the arc tangent in radians of y/x based on the signs of both values to determine the correct quadrant. |
5 | double cos(double x) Returns the cosine of a radian angle x. |
6 | double cosh(double x) Lightroom import mac photos library. Returns the hyperbolic cosine of x. |
7 | double sin(double x) Returns the sine of a radian angle x. |
8 | double sinh(double x) Returns the hyperbolic sine of x. |
9 | double tanh(double x) Returns the hyperbolic tangent of x. Google photos backup mac photos library. |
10 | double exp(double x) Returns the value of e raised to the xth power. |
11 | double frexp(double x, int *exponent) The returned value is the mantissa and the integer pointed to by exponent is the exponent. The resultant value is x = mantissa * 2 ^ exponent. |
12 | double ldexp(double x, int exponent) https://newghost952.weebly.com/blog/mac-osx-1012-odbc-library. Returns x multiplied by 2 raised to the power of exponent. |
13 | double log(double x) Returns the natural logarithm (base-e logarithm) of x. |
14 | double log10(double x) Returns the common logarithm (base-10 logarithm) of x. |
15 | double modf(double x, double *integer) The returned value is the fraction component (part after the decimal), and sets integer to the integer component. |
16 | double pow(double x, double y) Returns x raised to the power of y. |
17 | double sqrt(double x) Returns the square root of x. |
18 | double ceil(double x) Returns the smallest integer value greater than or equal to x. |
19 | double fabs(double x) Returns the absolute value of x. |
20 | double floor(double x) Returns the largest integer value less than or equal to x. |
21 | double fmod(double x, double y) Returns the remainder of x divided by y. |