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 - F2x.c (source / functions) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 83.5 % 1838 1534 Test Date: 2026-08-15 17:02:54 Functions: 89.3 % 214 191 Legend: Lines:     hit not hit

Function Name	Hit count
F2xC_to_FlxC	0
F2xC_to_ZXC	4116
F2xV_to_F2m	236428
F2xV_to_FlxV_inplace	34238
F2xV_to_ZXV_inplace	1453125
F2xXC_to_ZXXC	1141
F2xXV_to_F2xM	0
F2xX_F2x_add	0
F2xX_F2x_mul	482261
F2xX_add	424054
F2xX_addspec	1186
F2xX_deriv	80589
F2xX_lgrenormalizespec	3337
F2xX_recipspec	2423
F2xX_renormalize	2716269
F2xX_to_F2xC	0
F2xX_to_FlxX	56
F2xX_to_Kronecker	311050
F2xX_to_Kronecker_spec	6038
F2xX_to_ZXX	1470
F2xXn_red	0
F2xY_F2xqV_evalx	136640
F2xY_F2xq_evalx	0
F2xY_degreex	207075
F2x_1_add	190467
F2x_F2xqV_eval	611467
F2x_F2xq_eval	45155
F2x_Frobenius	663201
F2x_add	41375466
F2x_addshift	46908
F2x_addshiftip	140733939
F2x_addshiftipspec	167385040
F2x_addspec	73287
F2x_deflate	0
F2x_degree	87913797
F2x_degree_lg	287018738
F2x_degreespec	264
F2x_deriv	1291131
F2x_divrem	13957080
F2x_eval	14350
F2x_even_odd	61859
F2x_extgcd	2852913
F2x_factorel	14958
F2x_gcd	3851404
F2x_get_red	219049
F2x_halfgcd	824
F2x_halfgcd_i	824
F2x_is_smooth	231315
F2x_is_smooth_squarefree	266783
F2x_is_x	19364
F2x_issquare	35468
F2x_matFrobenius	236428
F2x_mul	34662953
F2x_mul1	24368100
F2x_mulspec	34727135
F2x_mulspec_basecase	3350953
F2x_mulspec_mulii	132
F2x_pow2n	164934
F2x_recip	0
F2x_recip1	35
F2x_recip_raw	0
F2x_rem	52062431
F2x_shift	267415
F2x_shiftip	27751276
F2x_shiftneg	929
F2x_shiftpos	266486
F2x_slice	1610696
F2x_sqr	6977530
F2x_sqrt	251511
F2x_to_F2v	1563549
F2x_to_F2xX	378
F2x_to_Flx	133287
F2x_to_ZX	1536895
F2x_to_int	264
F2x_valrem	35488
F2xn_div	35
F2xn_div1	21
F2xn_inv	28
F2xn_inv1	35
F2xn_inv_basecase1	35
F2xn_mul	39
F2xn_red	76
F2xqV_roots_to_deg1	7
F2xqV_roots_to_pol	7
F2xqXM_F2xqX_mul2	0
F2xqXM_mul2	0
F2xqXQV_red	63
F2xqXQ_autpow	70558
F2xqXQ_autpow_mul	33416
F2xqXQ_autpow_sqr	88832
F2xqXQ_auttrace	2737
F2xqXQ_auttrace_mul	7196
F2xqXQ_auttrace_sqr	4907
F2xqXQ_inv	7
F2xqXQ_invsafe	7
F2xqXQ_mul	114537
F2xqXQ_pow	7
F2xqXQ_powers	7728
F2xqXQ_sqr	104417
F2xqXV_prod	7
F2xqX_F2xqXM_qmul	0
F2xqX_F2xqXQV_eval	14441
F2xqX_F2xqXQ_eval	122248
F2xqX_F2xq_mul	6993
F2xqX_F2xq_mul_to_monic	206606
F2xqX_addmulmul	0
F2xqX_disc	14
F2xqX_divrem	33243
F2xqX_divrem_Barrett	1186
F2xqX_divrem_Barrettspec	1189
F2xqX_divrem_basecase	545842
F2xqX_extgcd	14
F2xqX_extgcd_basecase	14
F2xqX_extgcd_halfgcd	0
F2xqX_gcd	170012
F2xqX_gcd_basecase	169613
F2xqX_get_red	220365
F2xqX_halfgcd	0
F2xqX_halfgcd_all	7
F2xqX_halfgcd_all_i	7
F2xqX_halfres	0
F2xqX_halfres_basecase	7
F2xqX_halfres_i	7
F2xqX_halfres_split	0
F2xqX_halfres_update	0
F2xqX_invBarrett	45
F2xqX_invBarrett_Newton	45
F2xqX_invBarrett_basecase	0
F2xqX_mul	155525
F2xqX_mulspec	3019
F2xqX_normalize	206620
F2xqX_powu	0
F2xqX_red	1006014
F2xqX_rem	750990
F2xqX_resultant	21
F2xqX_resultant_basecase	21
F2xqX_sqr	105488
F2xq_Artin_Schreier	213015
F2xq_autpow	19371
F2xq_autpow_mul	14877
F2xq_autpow_sqr	29550
F2xq_conjvec	7
F2xq_div	1384016
F2xq_easylog	559327
F2xq_inv	2852906
F2xq_invsafe	2852913
F2xq_log	543777
F2xq_log_Coppersmith	14
F2xq_log_Coppersmith_d	80
F2xq_log_Coppersmith_rec	28
F2xq_log_Coppersmith_worker	2045
F2xq_log_find_rel	57
F2xq_log_from_rel	58
F2xq_log_index	14
F2xq_matrix_pow	236428
F2xq_mul	14099786
F2xq_order	415
F2xq_pow	2438272
F2xq_pow_init	14
F2xq_pow_table	5243
F2xq_powers	365872
F2xq_powu	49
F2xq_sqr	6640557
F2xq_sqrt	38848
F2xq_sqrt_fast	61859
F2xq_sqrtn	8324
F2xq_trace	458094
FlxC_to_F2xC	16647
FlxXC_to_F2xXC	413
FlxX_to_F2xX	945
Flx_to_F2x	157651
Kronecker_to_F2xqX	158544
RgX_to_F2x	3087
Rg_to_F2xq	801232
ZXX_to_F2xX	5264
ZX_to_F2x	3168677
Z_to_F2x	213618
_F2xqXQ_add	345579
_F2xqXQ_cmul	482261
_F2xqXQ_mul	114481
_F2xqXQ_one	375504
_F2xqXQ_red	352064
_F2xqXQ_sqr	33264
_F2xqXQ_zero	7
_F2xqX_mul	882
_F2xqX_sqr	0
_F2xq_add	1704978
_F2xq_cmul	2092958
_F2xq_equal0	973
_F2xq_inv	413
_F2xq_mul	2183761
_F2xq_neg	798
_F2xq_one	928634
_F2xq_pow	2394912
_F2xq_rand	9385
_F2xq_red	583504
_F2xq_rmul	15890
_F2xq_s	693
_F2xq_sqr	1211717
_F2xq_zero	259885
check_kernel	14
gener_F2xq	161
get_F2xqX_red	784233
get_F2xq_field	1701
int_to_F2x	132
matJ2_F2xXM	0
matid2_F2xXM	0
mkF2	27081
monomial_F2x	2751
pol1_F2xX	447042
polx_F2xX	441
random_F2xqX	2856
rel_Coppersmith	147612
smallirred_F2x	14

Generated by: LCOV version 2.0-1