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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30824-18397de1d0) Lines: 1882 2002 94.0 % Date: 2026-04-18 09:26:04 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57629507
Q_to_Fp	226838
Qdivii	143041433
Qdivis	1762590
Qdiviu	151381929
Zp_nosquare_m1	42
_serprec	8187500
addQp	4762995
addRc	310765368
addRq	1302
addTp	7
add_intmod_same	3411644
add_rfrac	3017298
add_rfrac_scal	8823993
add_scal	29400551
add_ser_scal	417278
addqf	77
addsub_frac	40919078
addsub_frac_i	14244029
addsub_polmod	7210
addsub_polmod_scal	13458204
addsub_pp	19973813
conj_i	31556270
conjvec	84
divRc	2918697
divRq	301
divTp	3674
div_T_scal	7293140
div_intmod_same	341545
div_polmod_same	37044
div_rfrac	1187510
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557271
div_scal_pol	14531955
div_scal_rfrac	1052294
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23430764
divfq	42
divpT	1204910
divpp	13211685
divqf	63
divrunextu	213488427
fix_rfrac	207018
gadd	6257350686
gaddsg	270817239
gconj	390611
gdiv	455345990
gdivgs	13378256
gdivgu	61804664
gdivgunextu	1583803
ginv	38488174
gmul	8960746395
gmul2n	150448731
gmulsg	244357035
gmulug	283938451
gred_rfrac2	39475112
gred_rfrac_simple	57632623
gsqr	1343867612
gsub	2904932351
gsubsg	3270047
inv_polmod	189770
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593746
mulRc	355350771
mulRq	2387
mulTp	4985909
mul_gen_rfrac	161376
mul_intmod_same	2987648
mul_polmod	2674945
mul_polmod_same	8532875
mul_polmod_scal	3219624
mul_rfrac	7910292
mul_rfrac_scal	10435532
mul_scal	198313168
mul_self_scal	7663071
mul_ser_scal	323974
mulcIR	11905709
mulcc	281704081
mulcxI	15655030
mulcxmI	2985846
mulcxpowIs	5563160
mulpp	17505609
mulqf	28
mulqq	1127
mulrfrac	38070700
pol2ser	6378555
quad_polmod_conj	18403
quad_polmod_mul	5860265
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852099
ser_add	4094149
ser_normalize	7658
setfrac	15142653
sqr_polmod	419392
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017835
transtype	154222045
utoi_sign	65153979
warn_coercion	126

Generated by: LCOV version 1.16