Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - FpXX.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 944 1220 77.4 % Date: 2026-02-23 02:23:56 Functions: 114 134 85.1 % Legend: Lines: hit not hit

Function Name	Hit count
FpXQXQ_div	0
FpXQXQ_inv	0
FpXQXQ_invsafe	0
FpXQXQ_matrix_pow	0
FpXQXT_red	0
FpXQXV_red	0
FpXQX_extgcd_basecase	0
FpXQX_extgcd_halfgcd	0
FpXQX_halfres	0
FpXQX_halfres_update	0
FpXQX_to_mod_raw	0
FpXQXn_exp	0
FpXQXn_sqr	0
FpXX_integ	0
FqXC_to_mod_raw	0
FqXM_to_mod	0
FqX_to_mod_raw	0
get_FpXQX_algebra	0
matJ2_FpXQXM	0
matid2_FpXQXM	0
FpXQXQ_auttrace_mul	1
FpXQXQ_auttrace_sqr	1
FpXQXQ_auttrace	7
FqXC_to_mod	12
FpXQX_resultant_basecase	22
FpXQX_disc	29
FpXQXQ_minpoly	38
FpXQX_halfgcd	38
polxn_FpXX	38
random_FpXQX	45
FpXQX_resultant	49
FpXQX_powu	54
FpXQXQ_transmul_init	76
FpXQX_halfgcd_all	94
FpXQX_halfgcd_all_i	94
ZXX_copy	108
_FpXQXQ_zero	115
FpXQXM_mul2	126
FpXQX_FpXQXM_qmul	126
FpXY_FpXQ_evalx	132
FpXQXn_expint	155
FpXYQQ_pow	156
FpXQXV_FpXQX_fromdigits	162
FpXYQQ_mul	168
FpXQX_halfres_split	171
FpXQXQ_transmul	173
FpXQX_recipspec	214
FpXQX_halfres_basecase	220
FpXYQQ_sqr	240
FpXQXQ_autpow_mul	281
FpXQXM_FpXQX_mul2	297
get_FpXQXQ_algebra	306
FpXQX_dotproduct	344
FpXQX_halfres_i	391
FpXYQQ_redswap	408
FpXQXQ_autpow	427
FpXQXQ_autpow_sqr	439
FpXQX_to_mod	448
FpXQX_invBarrett_Newton	461
FpXQX_digits	534
FpXQX_addmulmul	594
FpXQXn_div	612
FpXQXn_inv	612
ZlXQXn_expint	612
FpXX_integXn	662
FpXQX_FpXQXQ_eval	740
FpXQXQ_autsum	1033
FpXQXQ_autsum_sqr	1045
FpXQXQ_autsum_mul	1154
_FpXQX_sqr	1482
FpXQXQ_powers	1612
FpXQXQ_pow	1614
FpXX_neg	1783
to_intmod	1872
FpXX_halve	1920
ZlXX_integXn	2316
FpXQX_invBarrett_basecase	2498
FpXQX_invBarrett	2977
FpXY_FpXQV_evalx	3160
FpXQX_gcd_basecase	3338
FpXQX_FpXQXQV_eval	3448
_FpXQX_sub	3999
FpXQXn_mulhigh	4020
FpXX_mulu	6108
FpXQX_mulhigh_i	6336
FpXXn_red	7200
_FpXQX_divrem	8532
FpXQX_get_red	10622
FpXX_deriv	11507
FpXY_eval	11706
FpXQX_gcd	12385
FpXY_FpY_mulspec	13087
FpXQXV_prod	14306
FpXY_evaly	16114
_FpXQXQ_one	16180
FpXX_shift	16609
_FpXQXQ_red	19755
FpXX_sub	26032
Fq_addmul	30668
FpXX_red	34054
FpXQXn_mul	38189
_FpXQXQ_mul	39550
FpXQXQ_mul	42287
to_ZX	42606
FpXY_evalx	43878
FpXX_Fp_mul	48410
FpXQX_div_by_X_x	57886
FpXQX_divrem_Barrett	70677
_FpXQX_mul	95657
_FpXQX_add	104485
FpXX_FpX_mul	107651
_FpXQXQ_cmul	107671
FpXQX_extgcd	113125
FpXX_FpX_mulspec	120738
FpXX_subspec	128057
FpXQX_divrem_Barrettspec	128891
FpXQX_divrem_basecase	149238
FpXQXQ_sqr	149405
_FpXQXQ_sqr	149405
FpXQX_sqr	158446
ZXX_is_ZX	209307
FpXQX_rem	224515
FpXX_recipspec	257782
ZXX_lgrenormalizespec	266710
FpXX_add	382232
FpXQX_FpXQ_mul	471207
FpXQX_divrem	909486
to_FlxqX	1061016
get_FpXQX_red	1134077
FpXQX_mul	1172852
FpXQX_mulspec	1435752
Kronecker_to_FpXQX	1600091
FpXQX_red	1645059
ZXX_is_ZX_spec	3080811

Generated by: LCOV version 1.16